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Minerals - Yavapaiite | TerraCollect

Mineral - Yavapaiite

YavapaiiteKFe(SO₄)₂

Chemical Properties

Mineral Class

Sulphates

Toxicity

none

Formula

KFe(SO₄)₂

Unit Cell

a=8,15 b=5,15 c=7,88 β=95° Z=2

Physical Properties

Hardness

2.5 - 3

Streak

whiteyellowyellow white

Optical Properties

Color

pinkvioletcolorless

Birefringence

0,105

Luster

Vitreous,

Adamantine

Transparency

transparent

Pleochroism

Geomineralogical Properties

Crystal System

monoclinic

Composition

Elements

Mass

SO₃

55,84

Al₂O₃

0,11

Fe₂O₃

27,82

FeO

0,07

MgO

0,08

Na₂O

0,62

K₂O

15,46

Arizona

Density

Normal (2-3,5)

Cleavage

Perfekt auf (001), (100) und deutlich auf (110)

Fracture

conchoidal,

uneven

Tenacity

Brittle

Point Group

Space Group

Habit

coarse, crusty, massive, tabular

Formation

Fumarolen, in SHMS-Lagerstätten

Paragenesis

Twinning

Rarity

Very rare

Synonyms

Yavapaiite

Groups and Members

Yavapaiit-Gruppe