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Mineral A

VS

Mineral B

G

Graftonite-(Ca)

Name

—

CaFe²⁺₂(PO₄)₂

Formula

—

Mineral Species

Entry type

—

Phosphates

Chemical class

—

Monoclinic

Crystal system

—

5

Mohs hardness

—

3.592

Specific gravity

—

Colorless

Streak

—

Vitreous

Luster

—

Good on {010}

Cleavage

—

P2_1/c

Space group

—

Graftonite

Structural group

—

Gft-Ca · Approved

IMA

—

2017

Named in

—

Pinkish brown, colorless in transmitted light

Typical colors

—

Ca · Fe · P · O

Elements

—