Mineralatlas Lexikon (english Version)

Welcome Guest

Overview

Homepage

Imprint

Data protection clause

Calendar

Our team

Collector's characteristics

History of Mineralienatlas

Howto sponsor

Our sponsores

Search term inside Encyclopedia

Full-text search

Mineral by property

Mineral by chemistry

Help and how it works

Mineralogy (Minerals)

Mineral classification

Crystallography

Mineral groups

Palaeontoloy (Fossils)

Newest forum contributions

Newest encyclopedia changes

Forum

Olivine group - Ladjuar Medam (Lajur Madan)

Mineral information / additional pictures (Olivine group)

Locality information (Afghanistan /Badachshan (Badakhshan; Badahsan), Provinz /Kuran va Munjan, Bezirk /Kokscha-Tal /Sar-e-Sang /Ladjuar Medam (Lajur Madan))

Minerals from the locality

Informations

Inserted from

Philip Blümner, Nürnberg, Mittelfranken, Deutschland

Collectors Summary

Chemical Formula

Mg_1.6Fe²⁺_0.4(SiO₄)

Color

olivgrün, gelblich, bräunlich, orangerot, orangebraun, selten grau, schwarzgrün, oder farblos

Streak color

weiß

Lustre

Glasglanz, Fettglanz

Hardness (Mohs)

6.5 - 7

Cleavages

unvollkommen

Fracture

muschelig

Crystal System

orthorhombisch,

Morphology

kurzprismatische Kristalle (Var. Peridot), meist körnige und dichte Aggregate