Bloodstone

Bloodstone Rock Professor Image

Bloodstone is a variety of prase (Chalcedony), with small red blood-like spots. Also known as heliotrope. Chemical formula SiO2.

Species: quartz - variety of chalcedony ♦ Chemistry: silicon dioxide ♦ Color: dark green/greenish-blue with small red blood-like spots ♦ Transparency: translucent or opaque ♦ Luster: waxy, resinous ♦ Moh's Hardness: 6.5-7 ♦ Localities: Australia, Brazil, Bulgaria, Canada, Czech Republic, Germany, India, Italy, Romania, Slovakia, South Africa, Uruguay, USA.

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