Andalusite Pin
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Andalusite Pin Products
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 NEW Me Ro 18k Flower Disc Pendant w Pink Andalusite  US $335.50
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 NEW 925 STERLING SILVER ROUND ANDALUSITE STUD EARRINGS US $7.50
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 Color Change Sapphire Earrings Set in S S Pink To Red US $22.00
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 Bluish Green Fluorite Necklace Set in S S 8878 Carats US $930.00
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 10K HUGE SMOKY SMOKEY QUARTZ RING GORGEOUS OLD 2 US $170.95
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 Andalusite Faceted Oval Earrings Set in 14kt YGF US $25.00
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 Martelli Dragon Breath Glass 89 CtCabochon Bracelet US $359.95
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 BURMESE IOLITE Solitaire Silver Ring Size 525 US $14.99
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 Andalusite Earrings 4 mm Rounds Set in S S Brazil US $22.00
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 Pretty Andalusite Dainty 3mm 3 stone Sterling sz 7 US $21.99
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 Chiastolite Andalusite Pendant j587 US $20.00
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 Andalusite Earrings 4 mm Rounds Set in BC S S Brazil US $40.00
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 AWESOME 14KT YG ANDALUSITE 4MM STUD EARRINGS 1CT TW US $17.99
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 AWESOME 14KT YG ANDALUSITE 4MM STUD EARRING 05CT US $9.89
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 Pretty Andalusite Dainty 3mm 3 stone Sterling sz 85 US $21.99
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 Andalusite Faceted Oval Earrings Set in S S 80 Carats US $25.00
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 Andalusite Earrings 4 mm Rounds Set in 14kt YGF Brazil US $30.00
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 Exotic Beautiful Andalusite Chiastolite Pendant US $12.99
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 WARM EARTH Andalusite Agate Necklace Thai Silver US $74.95
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 Calico Juno 14k Gold Andalusite Drop Earrings US $54.00
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 Calico Juno14k Gold Andalusite Flower Earrings US $48.00
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 Calico Juno 925 Sterling Silver Andalusite Earrings US $44.00
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 AFRICAN AMETHYST Friendship Heart Ring Size 725 US $12.99
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 BRAZILIAN LEMON QUARTZ Silver Ring Size 6 US $12.99
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 14kt Natural Yellow White Diamond Andalusite Ring US $675.00
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 ANCIENT INSPIRED CELEBRITY WORN HEALING JEWELRY US $19.95
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 Chiastolite CROSS STONE Sterling Silver Pendant US $144.00 |
 BRAZILIAN SMOKY QUARTZ Solitaire Pendant NR US $9.99
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 BRAZILIAN SMOKY QUARTZ Solitaire Ring Size 8 NR US $8.99
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 MEXICAN FIRE OPAL OREGON SUNSTONE Ring Size 775 NR US $9.99
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 Captivating Andalusite Tourmaline Necklace US $37.00
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 Chiastolite Sterling Silver Pendant Cross Stone US $144.00 |
 AFRICAN AMETHYST Silver Leverback Earrings NR US $1.99
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 AFRICAN ORCHID AMETHYST Solitaire Silver Pendant NR US $7.99
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 GOLDSTONE PINK PEARLS Sterling Silver Stud Earrings NR US $4.99
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Andalusite Pin images
Andalusite Pin Questions
what is Andalusite? Where is it found?
Andalusite is a polymorph with two other minerals; kyanite and sillimanite. A polymorph is a mineral that shares the same chemistry but a different crystal structure with another, or other, minerals. A unique variety of andalusite is called "chiastolite". It contains black or brown clay and/or carbonaceous material inclusioned in the crystal. These inclusions are arranged in regular symmetrical shapes. Usually they are in the form of a cross or X.
PHYSICAL CHARACTERISTICS:
Color is white, red, brown, orange and green.
Luster is vitreous.
Transparency crystals are transparent to translucent.
Crystal System is Orthorhombic; 2/m2/m2/m
Crystal Habits include prismatic crystals with a square cross section terminated by a pinacoid. also massive and granular.
Cleavage is good in two directions.
Fracture is splintery to subconchoidal.
Hardness is 7.5
Specific Gravity is approximately 3.15+ (above average)
Streak is white.
Associated Minerals are cordierite, biotite, feldspars, quartz, kyanite and sillimanite.
Other Characteristics: dark inclusions produce cruciform shapes in the variety, chiastolite. Index of refraction is 1.632-1.638.
Notable Occurrences include Andalusia, Spain; Austria; California, USA and China.
Best Field Indicators are crystal habit, color, inclusions (if present) and hardness.