tincalconite

Tincalconite is a hydrous sodium borate mineral closely related to borax, and is a secondary mineral that forms as a dehydration product of borax. Its formula is Na2B4O7·5H2O or Na2[B4O5(OH)4]·3H2O.

In the Vinony graph

Vinony's link graph records 9 inbound references to tincalconite, and connects out to hexagonal crystal system, water and California.

Vinony files it under Minerals described in 1878, Minerals in space group 155 and Nesoborates.

Vinony links it to 9 Wikipedia language editions.

Key facts

Mineral.name: Tincalconite
Mineral.image: TincalconiteUSGOV.jpg
Mineral.imagesize: 260px
Mineral.category: Nesoborates
Mineral.formula: Na2[B4O5(OH)4]·3H2O
Mineral.IMAsymbol: Tnc
Mineral.strunz: 6.DA.15
Mineral.system: Trigonal
Mineral.class: Trapezohedral (32) H-M symbol: (32)
Mineral.symmetry: R32

via Wikipedia infobox

Wikidata facts

Named after: powder
Image: TincalconiteUSGOV.jpg

Show 8 more facts

Commons category: Tincalconite
Nickel-Strunz 9th edition (updated 2009): 6.DA.15
Nickel-Strunz '10th ed', review of (9th ed/ 2009 update): 6.DA.15
type locality (geology): Searles Lake
crystal system: trigonal crystal system
IMA Mineral Symbol: Tnc
chemical formula: Na₂B₄O₅(OH)₄·3H₂O
Strunz 8th edition (series ID, updated): Vc/B.05

Sources (1)

wikidata.org

via Wikidata · CC0

~2 min read

Encyclopedic overview

2 sections

Contents

Gallery
References

Tincalconite typically occurs as a fine grained white powder. It crystallizes in the hexagonal crystal system and has been found as primary euhedral di-rhombohedral, pseudo-octahedral crystals. It is also found pseudomorphically replacing borax crystals. It has a specific gravity of 1.88 and a Mohs hardness of 2. Refractive index values are nω=1.460 and nε=1.470.

Excerpted from Wikipedia’s “tincalconite” article, available under the CC BY-SA 4.0 licence.