Gemstones Tools

Bloodstone

Bloodstone rectangle bead
(blod'- ston')

13th c.; Ger. bluot, stein , Slav. stena , Sansk. styayate

Green chalcedony sprinkled with red spots resembling blood, aso called heliotrope, used as ornamental stone and sometimes in jewelry
Color
Opaque dark green with red to brownish red spots
Family
Chalcedony - Cryptocristalline quartz
Chemical composition
SiO2
Crystal system
Hexagonal
Hardness (Mohs scale)
6,5 - 7
Specific gravity
2,60 ±0,05
Refractive index
1,537 ±0,02
Birefringence
Invisible
Optical character
None (aggregate)
Chanthaburi

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Jaipur

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