Tinaksite

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title: "Tinaksite" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["calcium-minerals", "sodium-minerals", "potassium-minerals", "inosilicates", "gemstones", "triclinic-minerals", "minerals-in-space-group-2", "minerals-described-in-1965"] description: "Silicate mineral" topic_path: "general/calcium-minerals" source: "https://en.wikipedia.org/wiki/Tinaksite" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

::summary Silicate mineral ::

::data[format=table title="Infobox mineral"]

Field	Value
name	Tinaksite
category	Silicate mineral
image	Tinaksite, Charoite-543035.png
imagesize	260
caption	Tinaksite (brown) and associated charoite (lilac).
formula
IMAsymbol	Tnk
strunz	9.DG.75
system	Triclinic
class	Pinacoidal ()
(same H-M symbol)
symmetry	P
color	Pink, pale yellow, light brown
habit	Fibrous, crystalline or prismatic, crystalline, or radial, crystalline
cleavage	Perfect in one direction, indistinct in one direction
mohs	6
luster	Vitreous to glassy
refractive	nα = 1.593 nβ = 1.621 nγ = 1.666
opticalprop	Biaxial (+)
birefringence	δ = 0.073
streak	White
gravity	2.82
diaphaneity	Transparent to translucent
references
::

| name = Tinaksite | category = Silicate mineral | boxwidth = | boxbgcolor = | image = Tinaksite, Charoite-543035.png | imagesize = 260 | caption = Tinaksite (brown) and associated charoite (lilac). | formula = | IMAsymbol = Tnk | molweight = | strunz = 9.DG.75 | system = Triclinic | class = Pinacoidal () (same H-M symbol) | symmetry = P | color = Pink, pale yellow, light brown | habit = Fibrous, crystalline or prismatic, crystalline, or radial, crystalline | twinning = | cleavage = Perfect in one direction, indistinct in one direction | fracture = | mohs = 6 | luster = Vitreous to glassy | refractive = nα = 1.593 nβ = 1.621 nγ = 1.666 | opticalprop = Biaxial (+) | birefringence = δ = 0.073 | pleochroism = | streak = White | gravity = 2.82 | density = | melt = | fusibility = | diagnostic = | solubility = | diaphaneity = Transparent to translucent | other = | references =

Tinaksite (chemical formula ) Its name is derived from its composition: titanium (Ti), sodium (Na) potassium (K) and silicon (Si). The International Mineralogical Association first recognized tinaksite as a mineral in 1965.

References

References

1. Warr, L.N.. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine.
2. "Tinaksite Mineral Data".
3. "Tinaksite".
4. [https://www.mineralienatlas.de/lexikon/index.php/MineralData?mineral=Tinaksite Mineralienatlas]
5. "TINAKSITE (Potasium Sodium Calcium Manganese Titanium Iron Oxide Silicate Hydroxide)".

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