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Transparency

Semitransparent - Opaque

Luster

Vitreous, Waxy

Sugilite

Sugilite

Unearthed Gemstones Jewelry →

Locales

Hardness

5.5-6.5

1

1

2

2

3

3

4

4

5

5

6

6

7

7

8

8

9

9

10

10

Treatment

Interesting Fact

Gallery →

Chemical Formula

Composition

potassium sodium lithium iron manganese silicate

Colours

Purple

Blue

Black