Rare and elegant Mexican Psilomelane freeform pendant with silver (ETP00231) Golden Obsidian the most common reference for

the most common reference for which is certain coloured varieties of quartz which are a medium deep shade of golden yellow

It is not surprising that ancient gem traders thought that these colorful spinels were rubies and sapphires

which is softer than the opal

these rod-like structures show up as spots

Rare and elegant Mexican Psilomelane freeform pendant with silver (ETP00231) Golden Obsidian the most common reference forPsilomelane Psilomelane, also known as black hematite, is a group name for hard black manganese oxides such as hollandite and romanechite. Psilomelane consists of hydrous manganese oxide with variable amounts of barium and potassium. Dimensions of pendants: Size: 22. 5 x 43 x 8. 5 mm this is only an approximate Finishing: Polished