[DOC] [TLE] Free Flashcards about GEMS & JEWELRY - StudyStack [PAR] STAR SAPPHIRES CONTAIN NEEDLES OF THE MINERAL RUTILE THAT 
REFLECT LIGHT IN STARLIKE RAYS, USUALLY THIS MANY, 6. THE ONLY... [DOC] [TLE] Blue and Pink Star Sapphire Gemstone Information at AJS Gems [PAR] Learn all about blue and pink star sapphire, including how to select a fine gem ... 
Some rare natural sapphires exhibit a star-like phenomenon known as ... These 
gems contain intersecting needle-like inclusions (often the mineral rutile, a 
mineral ... When birefringence is high, light rays reflect off different parts of the 
back of a... [DOC] [TLE] Black Star Sapphire Gemstone Information at AJS Gems [PAR] Star Sapphire is a type of sapphire that exhibits a star-like phenomenon known 
as asterism. Star sapphires contain intersecting needle-like inclusions that cause 
the ... The inclusions are typically the mineral rutile, but in black star sapphire it is 
... of light reflected at the surface of a gemstone is its luster and sapphires have a
... [DOC] [TLE] Asterism (gemology) - Wikipedia [PAR] Asterism or star stone, is a name applied to the phenomenon of gemstones 
exhibiting a ... The typical asteria is the star sapphire, generally a bluish-grey 
corundum, ... asterism is due to the reflection of light from twin-lamellae or from 
fine tubular ... needle-like inclusions of rutile aligned perpendicular to the rays of 
the star. [DOC] [TLE] * Star sapphires (Jewelry) - Definition,meaning - Online Encyclopedia [PAR] Star sapphires usually have six ray stars, but twelve ray stars are also known. ... 
They come in many colours, the most common being grey or blue. ... It occurs 
when there is sufficient rutile-tiny needles of titanium-in the stone. ... AsterismAn 
asterism is a star-like luminous effect that reflects light in some gemstones, like 
star... [DOC] [TLE] * Star Sapphire (Jewelry) - Definition,meaning - Online Encyclopedia [PAR] Star sapphires usually have six ray stars, but twelve ray stars are also known. ... It 
occurs when there is sufficient rutile-tiny needles of titanium-in the stone. ... 
AsterismAn asterism is a star-like luminous effect that reflects light in some ... the 
synthetic Linde Star Sapphire hit the market, and many star sapphires found 
today are... [DOC] [TLE] Star Sapphire | jewelinfo4u- Gemstones and Jewellery Information ... [PAR] Mar 8, 2016 ... A good Star Sapphire should be eye clean and have velvet like softness, ... a 
wavy star like formation, which moves around when the mineral is rotated. ... The 
inclusions must be long, very thin needle like which called as 'rutile'. ... the gem's 
growth and the number of rays produced by the reflected light. [DOC] [TLE] Star Ruby from Burma. Star rubies and sapphires are not ... - Pinterest [PAR] Star rubies and star sapphires are gemstones that exhibit a star-like ... Star gems 
contain intersecting needle-like inclusions (often the mineral rutile, a mineral... [DOC] [TLE] Rutile crystals that have grown in some rubies, sapphires ... - Pinterest [PAR] Because it is reflected light rather than a mark on the stone, the star is visible at 
multiple orientations. ... Star rubies and star sapphires are gemstones that exhibit 
a star-like ... Star gems contain intersecting needle-like inclusions (often the 
mineral rutile ..... There are as many worlds as there are kinds of days, and as an 
opal... [DOC] [TLE] Star Stones (Asterism) [PAR] This phenomenon of reflected light is called "asterism" and the gems are called 
star stones. ... offset with its own set of rutile needles can lead to the formation of 
a twelve rayed star. ... [Star ruby, white star sapphire ring, rare bi-colored star 
sapphire] ... Star stones are usually native cut and often have bulging sides and 
an... [DOC] [TLE] STAR BLUE SAPPHIRE: Star sapphires usually have six ray stars ... [PAR] STAR BLUE SAPPHIRE: Star sapphires usually have six ray stars, but twelve ray 
... This effect displays a thin band of light down the center of the stone and is ...

Question: Star sapphires contain needles of the mineral rutile that reflect light in starlike rays, usually this many
Answer: 6