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Aegirine Charoite & Tinaksite

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MNT14863

Aegirine Charoite & Tinaksite

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Description
Locality: 
Murunskii Massif, Aldan Shield, Sakha Republic, Russian Federation
Size Range: 
Miniature (4.5-7 cm)
Size: 
2.6 × 4.5 × 2.2 cm
Description

Dark greenish-black aegirine rosettes in slightly lilac-coloured charoite, with small pieces of yellowish tinaksite and another cream-whiteish inclusion, maybe Tokkoite?

Nice paragenesis example specimen from Murun.

Mineral Data
What's on the rock

Aegirine

Formula: 
NaFe3+Si2O6
Group Parent: 
Clinopyroxene Subgroup
Strunz: 
9.DA.25
Crystal System: 
Monoclinic
Hardness: 
6.0
Type Locality: 
Rundemyr, Øvre Eiker, Buskerud, Norway

Charoite

Formula: 
(K,Sr)15-16(Ca,Na)32[Si6O11(O,OH)6]2[Si12O18(O,OH)12]2[Si17O25(O,OH)18]2(OH,F)4·~3H2O
Strunz: 
9.DG.92
Hardness: 
5.0 - 6.0
Type Locality: 
Murunskii Massif, Chara and Tokko Rivers Confluence, Aldan Shield, Sakha Republic (Saha Republic; Yakutia), Eastern-Siberian Region, Russia

Tinaksite

Formula: 
K2Na(Ca,Mn2+)2Ti[O|Si7O18(OH)]
Strunz: 
9.DG.75
Hardness: 
6.0
Type Locality: 
Murunskii Massif, Chara and Tokko Rivers Confluence, Aldan Shield, Sakha Republic (Saha Republic; Yakutia), Eastern-Siberian Region, Russia

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Thank you for your interest in my offers! Payment is possible via Paypal, bank transfer or cash if you pick up the item(s) personally. Bank data will be provided after settling the auction/transaction(s) if needed.

In case you are not happy with a specimen, you may send it back within 4 weeks. After receipt, i will refund the price minus shipping costs. Please inform me before sending an item back. If you have any questions (or maybe complaints) please feel free to contact me.

Best regards Roger

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