Black Gemstones Properties & Identification
| Mohs Hardness | Color of Gemstone | |
|---|---|---|
| Black Tourmaline | 7 – 7.5 | Dark Charcoal Black |
| Blizzard Stone | 7 | Dark Black with speckled pattern |
| Obsidian | 5 – 5.5 | Deep Black |
| Schorl Tourmaline | 7 – 7.5 | Dark Charcoal Black |
Then, what is the rarest black gemstone?
Black Opal
In this way, what rock is black? Hematite. Hematite, an iron oxide, is the most common black or brownish-black mineral in sedimentary and low-grade metasedimentary rocks. It varies greatly in form and appearance, but all hematite produces a reddish streak. Characteristics: Dull to semimetallic luster; hardness of 1 to 6.
Similarly, what stone is black and shiny?
Appearance-wise, black Obsidian is a solid black stone with a shiny luster when sculpted or polished. Black Obsidian is found in various areas of the world and it’s not an expensive black gemstone.