Gem (EM)

__NOTOC__
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 polyhedra. Both crystalline and 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 of 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 be 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 Iggwilv (see Spellbook). The gems marked with an asterisk may also be used to refuel Daoud's wondrous lanthorn.
Gem Type 	Effects or Uses 	Gem Type 	Effects or Uses
Agate 	Restful and safe sleep 	Jade 	Skill with music and musical instruments
Alexandrite 	Good omens 	Jasper 	Protection from venom
Amber 	Wards off disease 	Jet 	Soul object material
Amethyst 	Protects against drunkenness or drugging 	Lapis Lazuli 	Raises morale and courage
Beryl 	Wards off enemies 	Malachite 	Protection from falling
Bloodstone 	Weather control 	Sunstone 	Wards off spells, evil spirits, and poisons
Carbuncle 	Powers of dragons' sight 	Moonstone 	Causes lycanthropy
Carnelian 	Protection from evil 	Olivine 	Protection from spells
Cat's-eye agate	Protection from spirits 	Onyx 	Causes discord among enemies
Chalcedony 	Wards against undead 	Peridot 	Wards against enchantments
Chrysoberyl 	Protection from possession 	Ruby 	Gives good luck
Chrysolite 	Wards off spells 	Sapphire 	Aids understanding of problems, kills spiders, boosts magical abilities
Chrysoprase 	Invisibility 	Sapphire Star	Protection from magic
Coral 	Calms weather, ensures safety in river crossings, cures madness, halts bleeding	Sard 	Benefits wisdom
Diamond 	Invulnerability vs. undead 	Serpentine 	Adds to wile and cunning
Hematite 	Aids fighters, heals wounds 	Topaz 	Wards off evil spirits
Jacinth 	Luck for travelers, wards off plague, protection from fire 	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 	1,000gp
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 the Gem Variation Table:
Roll	Result
1 	Stone increases to the next highervalue; roll again, ignoring a resultof 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 lowerbase value; roll 1d6 again, ignoringa result of 6.
7-8 	Stone is uncut and in rough form(if possible). Value is 10% of thatlisted until polished and cut bysomeone with jewelry proficiency.At that time, roll again on thischart with 1d6.
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	Roll 	Ornamental Stone
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	Microcline 	97-98	Woodtine
49-50	Moss Agate 	99-00	Zarbrina
Roll 	Semiprecious Stone	Roll 	Semiprecious Stone
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 	Roll 	Fancy Stone
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	Roll 	Precious Stone
01-07	Aquamarine 	52-59	Pearl
08-14	Euclase 	60-67	Peridot
15-21	Flamedance 	68-75	Raindrop
22-29	Garnet 	76-81	Rusteen
30-37	Heliodor 	82-88	Sphene
38-44	Horn Coral 	89-95	Spinel
45-51	Orbaline 	96-00	Topaz
Roll 	Gem Stone 	Roll 	Gem Stone
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 	Roll 	Jewel
01-06	Amaratha 	37-47	Emerald
07-17	Beljuril 	48-58	Jacinth
18-25	Black Sapphire	59-69	King's Tears
26-36	Diamond 	70-71	Rogue Stone
72-82	Ruby 	83-85	Shou Lung Emerald
85-93	Star Ruby 	94-00	Star Sapphire
Roll 	Hardstone 	Roll 	Hardstone
01-06	Alabaster (5 sp) 	37-42	Luspeel (3 gp)
07-12	Archon (2 gp) 	43-48	Marble (3 gp)
13-18	Hornbill Ivory (7 sp) 	49-54	Meerschaum (2 gp)
19-24	Iris Agate (2 gp) 	55-60	Pipestone (1 gp)
25-30	Ivory (1-5 gp, depending on quality)	61-66	Psaedros (6 sp)
31-36	Lumachella (26 sp) 	67-72	Serpentine Stone (3 gp)
73-78	Soapstone (9 sp) 	79 	Star Metal (10,000 gp)
80-85	Sulabra (7 sp) 	86-91	Tempskya (1 gp)
92-95	Turritella (8 sp) 	96-00	Xylopal (22 sp)
Roll 	Shell 	Roll 	Shell
01-05	Abalone, Red (10 gp) 	37 	Cowrie, Purple Star (4,000 gp)
06-07	Abalone, Green (25 gp) 	38-44	Flame Helmet (50 gp)
08-14	Black Helmet (45 gp) 	45-51	Horned Helmet (50 gp)
15-21	Conch (10 gp) 	52-58	Mother of Pearl (5 sp for one pound)
21-28	Cowrie, Tiger (10 gp) 	59-65	Nacre (1 gp for one pound)
29-33	Cowrie, Pearl (20 gp) 	66-72	Nautilus (5 gp)
34-36	Cowrie, Opal (100 gp) 	73-79	Red Helmet (20 gp)
80-85	Sardonyx Helmet (40 gp)	86-90	Shambos (1-5 gp per shell plate)
91-94	Trochus (4 gp) 	95-98	Turbo (2 gp)
99-00	Unio (1 gp) 	 	
==Magic Gem List==
Category:Encyclopedia Magica