Riebeckite

Na-amphibole, double chain inosilicate mineral

Last price

—

Floor price

—

7-day median

—

30-day sales

30-day range

—

In circulation

Price history

Show table

Date	median	Low	High	sales

Sales history

Last sale: —
30-day average: —
30-day low: —
30-day high: —
Sales 7d: 0
Sales 30d: 0

No sales yet.

Anonymous sales: no buyer or seller shown. Figures count player-to-player sales only.

From Wikipedia

Riebeckite is a sodium-rich member of the amphibole group of silicate minerals. It has chemical formula Na2(Fe2+3Fe3+2)Si8O22(OH)2. It forms a solid solution series with magnesioriebeckite, where Mg substitutes for Fe2+. It crystallizes in the monoclinic system, usually as long prismatic crystals showing a diamond-shaped cross section, but also in fibrous, bladed, acicular, columnar, and radiating forms. Its Mohs hardness is 5.0–6.0, and its specific gravity is 3.0–3.4. It has perfect cleavage in two directions in the shape of a rhombus, while its fracture is uneven and splintery. It is often translucent to nearly opaque.

Text: Wikipédia, CC BY-SA 4.0. · Image: Robert M. Lavinsky (CC BY-SA 3.0) ·