Triplite

Triplite is a rare phosphate mineral that typically forms in granular, massive, or compact habits.

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Information about Triplite

Triplite is a rare phosphate mineral that typically forms in granular, massive, or compact habits.

Its crystals are usually poorly developed, appearing as irregular aggregates rather than well-defined shapes. The mineral is often opaque and has a resinous to greasy luster.

Triplite’s colour typically ranges from reddish-brown to brownish-black, although yellow, orange, and pink varieties can also occur.

 


Uses and History

Triplite has limited industrial or commercial use due to its rarity, but it is valued by mineral collectors for its unusual appearance and association with pegmatites.

Occasionally, high-quality specimens are cut into cabochons or faceted for jewellery usage.

 

Triplite was first described in 1813 and derives its name from the Greek word triploos, meaning “triple,” referencing its three cleavage directions.

Historically, the mineral has been of interest mainly to mineralogists and collectors. Triplite’s discovery in phosphate-rich pegmatites made it an important subject for studies on phosphate mineralogy.

 


Mineralogy

Chemistry
A phosphate mineral with the formula (Mn,Fe)2(PO4)(F,OH).
Colours and Variations

Brown, red-brown, red, salmon pink

Streak
White to brown, yellowish sometimes
Luster
Vitreous to resinous
Transparency
Translucent to opaque
Fracture
Uneven to subconchoidal
Crystal habit
Prismatic, granular, massive, nodular
Mohs hardness
5.0 – 5.5
Fluorescence
Specific Gravity
3.5 – 3.9
Easiest testing method

Hazards and Warnings

Mineral collectors should wash their hands after handling specimens, to avoid any exposure to potential toxins.

Almost all rocks, minerals (and, frankly, almost all other substances on earth) can produce toxic dust when cutting, which can cause serious respiratory conditions including silicosis.

When cutting or polishing rocks, minerals, shells, etc, all work should be done wet to minimise the dust, and a suitable respirator or extraction system should be used.

 


Translations

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  • Триплит

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Japanese:

  • トリプライト

Spanish:

  • Triplita

German:

  • Triplit

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Further Reading / External Links