fornaciet

Fornacite is a rare lead, copper chromate arsenate hydroxide mineral with the formula: Pb2Cu(CrO4)(AsO4)(OH). It forms a series with the phosphate mineral vauquelinite. It forms variably green to yellow, translucent to transparent crystals in the monoclinic – prismatic crystal system. It has a Mohs hardness of 2.3 and a specific gravity of 6.27.

In the Vinony graph

Vinony's link graph records 8 inbound references to fornaciet, and connects out to Mohs scale of mineral hardness, monoclinic crystal system and Republic of the Congo.

It sits within the topics Arsenate minerals, Chromate minerals and Copper(II) minerals.

Vinony links it to 10 Wikipedia language editions.

Key facts

Mineral.name: Fornacite
Mineral.image: Dioptasereneville2.jpg
Mineral.imagesize: 260px
Mineral.caption: Dioptase (blue green), cerussite (light pink) and fornacite (green) from Renéville, Djoué, Brazzaville Region, Republic of Congo
Mineral.category: Arsenate mineral
Mineral.formula: Pb2Cu(CrO4)(AsO4)(OH)
Mineral.IMAsymbol: For
Mineral.strunz: 7.FC.10
Mineral.dana: 43.4.3.2
Mineral.system: Monoclinic
Mineral.class: Prismatic (2/m) (same H-M symbol)
Mineral.symmetry: P21/c
Mineral.unit cell: a = 8.101(2), b = 5.893(11), c = 17.547(9) [Å]; β = 110.00(4)°; Z = 4
Mineral.color: Deep olive-green
Mineral.habit: Aggregates of steep pyramidal to bladed, rounded crystals
Mineral.fracture: Irregular/uneven, conchoidal, sub-conchoidal
Mineral.tenacity: Brittle
Mineral.mohs: 2–3

via Wikipedia infobox

Wikidata facts

Image: Fornacite.jpg

Show 10 more facts

Nickel-Strunz '10th ed', review of (9th ed/ 2009 update): 7.FC.10
Nickel-Strunz 9th edition (updated 2009): 7.FC.10
streak color: olive
crystal system: monoclinic crystal system
Commons category: Fornacite
IMA Mineral Symbol: For
Mohs' hardness: 2.5
density: 6.27
chemical formula: CuPb₂(CrO₄)(AsO₄)(OH)
Strunz 8th edition (series ID, updated): VI/E.02

Sources (1)

wikidata.org

via Wikidata · CC0

Article · Nederlands

Het mineraal fornaciet is een zeldzame loodkoperchromaatarsenaathydroxide met als chemische formule Pb2Cu(CrO4)(AsO4)(OH). Soms komt een fosfaation voor in plaats van een arsenaat. Fornaciet vormt groene tot gele en transparante tot doorschijnende kristallen met een monoklien tot kristalrooster. De hardheid is 2,3 en het soortelijk gewicht 6,27. Fornaciet werd voor het eerst beschreven in 1915 en is genoemd naar (1867 - 1930), gouverneur van Frans Congo. De typelocatie is in in Congo-Brazzaville.

Abstract from DBpedia / Wikipedia · CC BY-SA