[DOC] [TLE] Obsidian is described as having this type of luster, from the Latin for ... [PAR] Jul 7, 2016 ... Obsidian is described as having this type of luster, from the Latin for ... Although it 
may have brown streaks, obsidian is primarily this color... [DOC] [TLE] The Quartz Page: Flint and Chert [PAR] Feb 16, 2012 ... As a general rule, one should primarily categorize rocks according to ... Flint does 
not have a specific color, but is often dark gray with shades of brown, ... Flint may 
show color banding, but this is not a concentric banding as seen in agate. ... 
Although it has a powder-like consistence and can sometimes be... [DOC] [TLE] Knowledge Center - Stone Types - Dakota Stones [PAR] A navy blue stone that is made up of sodium and has streaks of white calcite ... 
The most common colour of aventurine is green, but it may also be orange, 
brown, yellow, blue, or gray. ... Although colors are enhanced the healing 
properties remain the same. .... Obsidian is a volcanic glass, a rock rather than a 
mineral. [DOC] [TLE] This CD accompanies the book, %3ci%3eThin-Section Petrography ... [PAR] Since obsidian is primarily natural glass, and thus is noncrystalline, it is .... 
stronger interference colors, the feldspars are gray or white, the chlorite is brown, 
and the .... green hornblende is more broken up with the amphibole cleavage 
lines visible. ..... polarized light, although the tremolite can sometimes have a 
pale color. [DOC] [TLE] Crystals and Gemstones - Crystalinks [PAR] They can have as few as 4 sides, or as many as 33 (master mason number). .... 
Citrine is a variety of quartz ranging in color from a pale yellow to brown. ..... 
Although its most common color is black, obsidian can also be found in light 
brown, .... is a red brown to black, mostly opaque, nesosilicate mineral with a 
white streak. [DOC] [TLE] Stones used in Native American Indian Jewelry - Horsekeeping [PAR] Although amber is not a mineral, it is classified as a gemstone. Most of ... Amber 
is commonly a clear tan color, but it may have greenish to goldish ... Obsidian is a 
grounding and protective stone. ... Its color includes combinations of black, green, 
brown, purple with streaks and spots of greenish gray and light to dark brown. [DOC] [TLE] Save/print a copy of this sheet here - LandOfMarbles.com [PAR] Marbles have been formed from various semiprecious minerals for hundreds of 
years. ... their increased heft (as opposed to glass) can be devastating in the 
marble ring. ... Rainbow Fluorite This mineral comes in a range of hues, 
primarily in the ... a color range from an eggplant shade of purple to a rich, 
chocolate brown. [DOC] [TLE] NetHack Gems and Luck spoiler - Steelypips.org [PAR] Nov 12, 2004 ... obsidian, 200, 1, 1*, soft, black ... yellowish brown glass, 0, 1, 77, soft, yellowish 
brown ... bad touchstone, streak, scratch, scritch, streak ... flint stone: These exist 
primarily to make it hard to identify touchstones, ... All hard gems are valuable, 
although some colors may have more than one possible identity. [DOC] [TLE] Ammolite - Wikipedia [PAR] Ammolite is an opal-like organic gemstone found primarily along the eastern 
slopes of the ... The shell itself may contain a number of trace elements, including
: ... An iridescent opal-like play of color is shown in fine specimens, mostly in 
shades of ... Rarely is ammolite without its matrix, which is typically a grey to 
brown shale,... [DOC] [TLE] Turquoise - Wikipedia [PAR] Turquoise is an opaque, blue-to-green mineral that is a hydrated phosphate of 
copper and aluminium, with the chemical formula CuAl6(PO 4)4(OH)84H 2O. It is 
rare and valuable in finer grades and has been prized as a gem and .... Some of 
this unusually coloured turquoise may contain significant zinc and iron, which is 
the... [DOC] [TLE] Gemstone Terminology - Earthmother Crafts [PAR] Although the same mineral compound as Jasper, Agate

Question: Although it may have brown streaks, obsidian is primarily this color
Answer: black