Gemstones

Gemstones

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A few definitions concerning gemstones are in order. Most minerals (and gems are usually minerals) are of two types--crystalline, occurring as single stones or clusters of stones, each having a definite structure that is regularly repeated throughout crystals of the same sort; or massive, occurring as continuous masses of the same mineral, having no regular structure that is readily discernible. (Technically, massive minerals are actually composed of a great number of microscopic crystals in most cases.)

Crystalline stones are often faceted, a process by which they are flaked or ground into a series of flat surfaces that together usually form one of several customary cuts, in the shape of symmetrical but irregular polyhedral. Both crystalline ant massive stones may be smooth cut, which is the act of forming them into regular shapes with flat surfaces suitable for engraving (those often found in rings).

They may be made into cabochons, oval or dome-shaped, with one flat side for mounting. They may also be carved into beads, figurines, symbols, and other shapes, or simply polished in the natural shape of the stone. Massive stones are sometimes found in large enough masses to be shaped like one would shape wood or stone; sections may be sawn off a large stone and used decoratively as slabs; or they may be carved (or even turned on lathes) into jars, bowls, and other functional shapes.

Inclusions are any of the specks of other materials, bubbles, tiny flaws, impurities, and the like which affect the appearance of a stone by their presence. Cat's-eyes, found among many mineral families, are caused by certain patterns of inclusions which, when a stone is shaped properly, appear similar to the slit-shaped pupil or a cat's eye.

Star gems have analogous patterns creating the illusion of a pale, six-rayed star. Both cat's-eyes and stars must usually be cut as cabochons to display the effects (known by the terms chatoyancy and asterism respectively). The value of a given stone will depend on its size, color, relative freedom from flaws, and the skill with which it has been cut.

Those mystical properties associated with the various gems are to he associated with the "classical'' forms; thus, while topaz exists in blue, colorless, and pink varieties, the mystical properties associated with the various gems are to be associated with the "classical" forms; thus, while topaz exists in blue, colorless, and pink varieties, the mystical properties with which topaz is credited are linked only to the traditional honey-yellow stone (and the similarly colored "oriental topaz"). When stones normally occur in a number of different colors, such as with agate, jade, jasper, and spinel (to name a few), this restriction does not apply. In the following text, each type of gem mentioned in the DMG is referenced by at least one of its popular names. The information on gem category (ornamental, fancy, etc.) and base value in gold pieces is taken from the DMG.

Reputed magical properties of gems
The Dungeon Master can use this list in a number of ways. The DM may choose gems with appropriate magical properties as needed material for the creation of a magical diagram or as part of the material components for the spells listed in the Fiendomicon of Iggwllv (see Spellbook). The gems marked with an asterisk may also be used to refuel Daouds' wondrous lanthorn

Gem Type	Effects or Uses
Agate	Restful and safe sleep
Alexandrite	Good omens
Amber	Wards off disease
Amethyst	Protects against drunkenness or drugging
Beryl	Wards off enemies
Bloodstone	Weather control
Carbuncle	Powers of dragons' sight
Carnelian	Protection from evil
Cat's-eye agate	Protection from spirits
Chalcedony	Wards against undead
Chrysoberyl	Protection from possession
Chrysolite	Wards off spells
Chrysoprase	Invisibility
Coral	Calms weather, ensures safety in river crossings, cures madness halts bleeding
Diamond	Invulnerability vs. undead
Hematite	Aids fighters, heals wounds
Jacinth	Luck for travelers, wards off plague, protection from fire
Jade	Skill with music and musical instruments
Jasper	Protection from venom
Jet	Soul object material
Lapis Lazulli	Raises morale and courage
Malachite	Protection from falling
Malachite	Wards off spells, evil spirits, and poisons
Sunstone	Wards off spells, evil spirits, and poisons
Moonstone	Causes lycanthropy
Olivine	Protection from spells
Onyx	Causes discord among enemies
Peridot	Wards against enchantments
Ruby	Gives good luck
Sapphire	Aids understanding of problems, kills spiders, boosts magical abilities
Sapphire	Star Protection from magic
Sard	Benefits wisdom
Serpentine	Adds to wile and cunning
Topaz	Wards off evil spirits
Turquoise	Aids horses in all ways (but the stone shatters when it operates)

Gem Color	Meaning or Significance
Black	The Earth, darkness, negation.
Blue	The heavens, truth, spirituality.
Clear	The sun, luck.
Green	Venus, reproduction, resurrection, sight
Red	Control of hemorrhaging, heat.
White	The Moon, enigmas.
Yellow	Secrecy, homeopathy, jaundice.

Find the value of each gem or group of gems on the table below, and check for gem variations:

Roll	Class	Base Value
01 25	Ornamental Stones	10 GP
26-50	Semiprecious Stones	50 GP
51-65	Fancy Stones	100 GP
66-80	Precious Stones	500 GP
81-90	Hardstones	Varies
91	Shells	Varies
92-99	Gems	1,000 GP
00	Jewels	5,000 GP

Ten percent of these gems are worth more or less than their base value, either because of imperfections or a particularly splendid cut. Use thc Gem Variation Table.

Roll	Result
1	Stone increases to the next higher value; roll again, ignoring a result of 1.
2	Stone is double base value
3	Stone is 10-60% above base value
4	Stone is 10-40% below base value.
5	Stone is half base value.
6	Stone is decreased to next lower base value; roll ld6 again, ignoring a result of 6
7 8	Stone is uncut and in rough form (if possible). Value is 10% of that listed until polished and cut by someone with jewelry proficiency. At that time, roll again on this chart with l d6

If the specific type of stone is desired, go to the appropriate table below and roll the stone type. Note that some gems have both economic value and commodity value if they can be used in creating magical items or magical spells.

Roll	Ornamental Stone Type	Roll	Ornamental Stone Type
01-02	Agni Mani	51-52	Nelvine
03-04	Algae	53-54	Nune
05-06	Augelite	55-56	Obsidian
07-08	Azurite	57-58	Oolite
09-10	Banded Agate	59 60	Ophealine
11-12	Blue Quartz	61-62	Rhodochrosite
13-14	Bluestone	63-64	Rosaline
15-16	Chrysocolla	65 66	Sagenite
17-18	Corstal	67-68	Sanidine
19-20	Crown of Silver	69-70	Sarbossa
21-22	Disthene	71-72	Satin Spar
23 24	Epidote	73-74	Sharpstone
25-26	Eye Agate	75-76	Sheen
27-28	Fire Agate	77-78	Silkstone
29-30	Fluorspar	79-80	Snowflake Obsidian
31-32	Frost Agate	81-82	Sunstone
33-34	Goldline	83-84	Thuparlial
35-36	Greenstone	85-86	Tiger Eye Agate
37-38	Hematite	87-88	Turquoise
39-40	Hyaline	89-90	Variscite
41-42	Lapis Lazuli	91-92	Violane
43-44	Lynx Eye	93-94	Webstone
45-46	Malachite	95-96	Wonderstone
47-48	Microeline	97-98	Woodtine
49 50	Moss Agate	99-00	Zarbrina

Roll	Semiprecious Stone Type	Roll	Semiprecious Stone Type
01-02	Agate	48-49	Malacon
03-04	Alestone	50-51	Mellochrysos
05 06	Andar	52-54	Moonstone
07-08	Aventurine	55-56	Mykaro
09-10	Bloodstone	57-58	Mynteer
11-12	Boakhar	59-62	Onyx
13-15	Carnelian	63-64	Orprase
16-18	Chalcedony	65-66	Phenalope
19-21	Chrysoprase	67-68	Rainbow Obsidian
22-24	Citrine	69-72	Rock Crystal
25-26	Clelophane	73-74	Samarskite
27-28	Datchas	75-77	Sardonyx
29-30	Dioptase	78-80	Serpentine
31-32	Gold Sheen	81-82	Skydrop
33-34	Hambergyle	83-86	Smoky Quartz
35-36	Hydrophane	87-88	Spodumene
37-38	Hypersthene	89-91	Star Rose Quartz
39-40	Iol	92-93	Tabasheer
41-43	Irtios	94-95	Tchazar
44-45	Jasper	96-97	Witherite
46-47	Luriyl	98-00	Zircon

Roll	Fancy Stone Type	Roll	Fancy Stone Type
01-03	Alexandrite	51-53	Jet
04-06	Amber	54-56	Kornerupine
07-10	Amethyst	57-60	Laeral's Tears
11-13	Angel's Skin	61-63	Mocca Stone
14-16	Brandeen	64-66	Octel
17-20	Cairngorm	67-70	Precious cat's-eye
21-23	Chrysoberyl	71-73	Scapra
24-26	Chrysolite	74-76	Shandon
27-30	Coral	77-80	Sinhalite
31-33	Golden Sapphire	81-83	Star Diopside
34-36	Green Sapphire	84-86	Tourmaline
37-40	Heliotrope	87-90	Tremair
41-43	Hyacinth	91-93	Ulvaen
44-46	Jade	94-96	Waterstar
47-50	Jargoon	97-00	Ziose

Roll	Precious Stone Type	Roll	Precious Stone Type
01-07	Aquamarine	45-51	Orbaline
08-14	Euclase	52-59	Pearl
15-21	Flamedance	60-67	Pcridot
22-29	Garnet	68-75	Raindrop
30-37	Heliodor	76-81	Rusteen
38-44	Horn Coral

Roll	Gem Stone Type	Roll	Gem Stone Type
01-05	Black Opal	54-58	Red Tears
06-11	Fire Opal	59-63	Rhodolite
12-16	Jasmal	64-68	Sapphire
17-21	Moonbar	69-74	Sard
22-26	Opal	75-79	Shou Lung Topaz
27-32	Orange Sapphire	80-84	Shou Lung Amethyst
33-37	Orblen	85-89	Tomb Jade
38-42	Orl	90-95	Water Opal
43-47	Purple Sapphire	96-00	Zendalure
48-53	Ravenar

Roll	Jewel Type	Roll	Jewel Type
01-06	Amaratha	59-69	King's Tears
07-17	Beljuril	70-71	Rogue Stone
18-25	Black Sapphire	72-82	Ruby
26-36	Diamond	83-85	Shou Lung Emerald
37-47	Emerald	85-93	Star Ruby
48-58	Jacinth	94-00	Star Sapphire

Roll	Hardstone Type	Roll	Hardstone Type
01-06	Alabaster (5 SP)	55-60	Pipestone (1 GP)
07-12	Archon (2 GP)	61 -66	Psaedros (6 SP)
13-18	Hornbill Ivory (7 SP)	67-72	Serpentine Stone (3 GP)
19-24	Iris Agate (2 GP)	73-78	Soapstone (9 SP)
25-30	Ivory (1-5 GP, depending on quality)	79	Star Metal (10,000 GP)
31 36	Lumachella (26 SP)	80-85	Sulabra (7 SP)
37-42	Luspeel (3 GP)	86 91	Tempskya (1 GP)
43-48	Marble (3 GP)	92 95	Turritella (8 SP)
49-54	Meerschaum (2 GP)	96-00	Xylopal (22 SP)

Roll	Shell Type	Roll	Shell Type
01-05	Abalone, Red (10 GP)	52-58	Mother of Pearl (5 SP for one pound)
06-07	Abalone, Green (25 GP)	59 65	Nacre (1 GP for one pound)
08-14	Black Helmet (45 GP)	66-72	Nautilus (5 GP)
15-21	Conch (10 GP)	73-79	Red Helmet (20 GP)
21-28	Cowrie, Tiger ( 10 GP)	80-85	Sardonyx Helmet (40 GP)
29-33	Cowrie, Pearl (20 GP)	86-90	Shambos (1-5 GP per shell plate)
34-36	Cowrie, Opal (100 GP)	91-94	Trochus (4 GP)
37	Cowrie, Purple Star (4,000 GP)	95-98	Turbo (2 GP)
38-44	Flame Helmet (50 GP)	99-00	Unio (1 GP)
45-51	Homed Helmet (51) GP)

Weapon Enhancements
All the enchantments that can be added to almost any weapon, are to be found here. There are exceptions, however, but the DM should reroll these.

Light Generation
As a general rule, magical weapons, armor, or items should not shed light when drawn or being used. This makes it too easy for the players to determine if a weapon is magical, unless the item's description states that it sheds light. However, if the DM chooses, he or she can rule that magical weapons (particularly swords, daggers, and +3 or greater items) shed light and c 'case, a magical weapon should never glow until the wielder is aware of its magical properties-the light property of a weapon should never be used as an excuse to identify a magical item. Note that the flame tongue, frost brand, holy avenger, life stealing, and sharpness swords have special properties with regard to light. These are dealt with in the individual weapon descriptions.

When the Random Tables in the back of this volume are used, the DM should roll on the table below in order to determine which enchantment is gained for the weapon. Once rolled, refer to the specific entry below for full details.

Roll	Enhancement Gained	Roll	Enhancement Gained
01	of Adaptation	48	of Holding
02	Agoraphobic	49	of Illumination
03	Antistoneskin	50	of Illusion
04	Anything	51	Intelligent
05	Aquatic	52	Intelligent II
06	Aquatic with Free Action	53	Invisible
07	of Balance	54	of Levitation
08	Bloodfearer	55	of Lighting
09	Boneiron	56	Lightweight
10	Bonewood	57	Living
11	with Bonus vs. Opponent	58	Miniature
12	of Breathing	59	Narcissistic
13	Brittleblade	60	Petrified
14	of Charming	61	Polymorphed
15	of Clairaudience	62	of Proficiency
16	of Clairvoyance	63	Purple-Leaf
17	Claustrophobic	64	Quirk
18	of Concealed Wizardry	65-67	Racial
19	of Deceiving	68	of Returning
20	of Defending	69	of See Invisible
21	of Deflecting	70	Shivering
22	of Detect Evil/Good	71	of Silence
23	of Detect Gems	72	of Silencing
24	of Detect Magic	73	of Slaying
25	of Detect Metal	74	of Slicing
26	of Detect Shifting Walls & Rooms	75	of Slowing
27	of Detect Slopes	76	of Specialization
28	of Detection	77	Spectral
29	of Disruption	78-80	of Speed
30	of Draining	81	of Speed II
31	of Enchantment	82	of Speeding
32	of ESP	83	Stoneiron
33	of Extinguishing	84	of Surrender
34	of Extra Damage	85	of telekinesis
35	of Find Secret Doors	86	of Telepathy
36	of Find Traps	87	of Teleportation
37	of Finding	88	of Translating
38	of Flame	89	Unbreakable
39	of Flaming	90	Uncharged
40	of Flying	91	of Venom
41	of Flying II	92	of Watching
42	of Forgetfulness	93	Weightless
43	Fossilized	94	of Wishing
44	of Healing	95	Woodiron
45	of Healing II	96	of X-Ray Vision
46	of Hiding	97-99	Roll twice, ignoring 97-00 results
47	with Hilt of Conjuring	00	Roll three times, ignoring 97-00 results

As an added feature, DMs may choose to roll on the table below to determine the construction material of a weapon. Often, the weapon's description states what the weapon is made of, or rolling on the table below.

Roll	Construction Material
01	Adamantite
02-10	Bone
11-20	Copper
21-60	Iron
61-70	Obsidian
71-75	Silver
76-85	Steel
86-95	Stone
96-00	Wood

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