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Amethyst

Found: Lagos

This is a variety of quartz colored by traces of manganese, titanium and iron.

Blue Sapphire

Found: Borno:Ngulde Kaduna: Antang. Katsina:Faskari. Taraba:Gashaka, Sardauna, Zing, Karim lamido, Takum, Yorro

 

 

 

 

 

 

Bixbit

Description: Member of the Beryl Group Colour of streak : White
 

Cleavage: indistinct

 

 

 




 

Smoky Quartz

 

 

 

 

 

 

 

 

 

Chrysoprase

 

Found: Lagos
Chrysoprase is the most valuable stone in the chalcedony group.

 

 

 

 

Uvite

 

 

 

 

 

 

Ruby

 

 

FOUND: Kaduna

 

 

 

 

Tourmaline
Found: Cross River: Uwet Nasarawa: Nasarawa Eggon. Ekiti: Ijero-Ekiti. Katsina:Faskari, Kurfi, Funtua, Bakori Niger:Rafi. Oyo:Oluyole. Taraba: Bali, Gashaka, Sardauna

 

 

 


 

Heliodor / Golden Beryl

Also known as Heliodor:Beryl Group Colour streak: White Cleavage:indistinct Fracture :Conchoidal, uneven ,brittle Crystal system: (Hexagonal) hexagonal prisms Chemical compositions:Al2Be(Si6O18) aluminium beryllum silicate Pleochroism: Golden : golden yellow ,green - yellow Green:definite ; yellow- green , blue - green Absorption Spectrum: Not usable Lustre :Vitreous

 


 


Quartz


Found: Oyo State ,Kwara State ,Osun state Nasarawa State,Ekiti stateKogi state,Katsina state
Plateau State,Sokoto state, Lagos state

 

 

 


 



Aquamarine

Found: Oyo: Olode, Oluyole Kaduna: Jama'a Plateau: Mangu, Pankshin, Wase, Bokkos. Kogi: Okene, Lokoja, Oka Hills, Olowa hills, Okura Diafa. Kaduna: Kagoro, Hange Hills Nassarawa: Keffi, Nassarawa-egon, Akwanga, Karu. Bauchi: Alkaleri, Bauchi, Dass, Gajuwa, Toro, Tafawa Balewa Gombe:Yamaltu-Deba Katsina: Faskari, Filati, Funtua, Bakori
 

 

Rubellite

 

 

 

 

Description :Tourmaline Group

 


 

Emerald


 

 

Description :Member of the Beryl Group

 

 

Spassartine
 

 


Description: Garnet Group
 

 

 


 

Smoky Quartz
 

 

 

 


Description : Smoky Quartz:
 

 

 


 

   

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