Tectosilicates

Labradorite

Chemical Formula:

(Ca,Na)(Al,Si)4O8 

Mohs Scale : 6, 6.5

Crystal System : Triclinic

Amethyst

Chemical Formula :  SiO2 

Mohs Scale : 7

Crystal System : Trigonal

Amethyst

Balıkesir, Turkey

Quartz

Chemical Formula :  SiO2 

Mohs Scale : 7  

Crystal System : Trigonal

Iron Stained Quartz

From Turkey

Quartz Geode

From Turkey


Red Quartz

From Morocco

Red colour is coused by iron oxide layer

Quartz

Agate

From Ankara, Turkey.


Agate

From Ankara, Turkey.

Quartz

Agate

From Ankara Çubuk, Turkey

Botryoidal Purple Chalcedony

Orthoclase & Quartz

Chemical Formula :  KAlSi3O8 (potassium feldspar)

Mohs Scale : 6

Crystal System : Monoclinic

Quartz

Smoky Quartz

Quartz

From Manisa, Turkey

Zeolite (Heulandite)

Chemical Formula :  (Ca,Na)2−3Al3(Al,Si)2Si13O36·12H2

Mohs Scale : 3.5, 4

Crystal System : Monoclinic

Smoky Quartz

Agate

From Ankara / Çubuk

Botryoidal Chalcedony

          From Manisa / Turkey


Agate

From Ankara / Çubuk

Amethyst, Quartz

From Balıkesir, Turkey

Agate

From, Ankara Turkey

Tiger's Eye

Chemical Formula :  SiO2 

Mohs Scale : 6-7  

CrystalSystem:Trigonal (Microcrystalline)

Smoky Quartz

Agate

From, Ankara Turkey


Sodalite

Chemical Formula : Na8(Al6Si6O24)Cl2 

Mohs Scale : 5.5 - 6 

Crystal System : Cubic 

Chalcedony

Botryoidal Chalcedony

From Manisa, Turkey.

Agate

From, Ankara Turkey


Druzy Quartz

From Manisa, Turkey

Smoky Quartz

Amethyst

From Balıkesir, Turkey

Agate

From, Ankara Turkey


Quartz

From Manisa, Turkey

Agate

From Manisa, Turkey

Chalcedony on calcite crystals

From Manisa, Turkey

Quartz Geode

From Manisa, Turkey

Botryoidal Chalcedony

From Manisa, Turkey.

Quartz

Quartz

Botryoidal Chalcedony

Chemical Formula :  SiO2 

Mohs Scale : 6-7  

Crystal System : Trigonal 


Amethyst

From Brazil.

Botryoidal Chalcedony

From Manisa, Turkey.

Quartz

From Manisa, Turkey

Druzy quartz

Agate

From Ankara / Çubuk


Aventurine

Chemical Formula :  SiO2 

Mohs Scale : 6-7  

Crystal System : Trigonal

Quartz Crystals on Dolomite

Quartz

Chemical Formula :  SiO2 

Mohs Scale : 6-7  

Crystal System : Trigonal

Agate

From Ankara, Turkey.


Moonstone (Hecatolite)

Chemical Formula :  (Na,K)AlSi3O8 

Mohs Scale : 6

Crystal System : Monoclinic

Chalcedony Geode

            Chrysoprase

Chemical Formula :  SiO2 

Mohs Scale : 6-7  

Crystal System : Trigonal

Agate

From Ankara Çubuk, Turkey


Quartz 

From Foça, İzmir

Agate

From, Ankara Turkey


Purple Chalcedony

Chemical Formula :  SiO2 

 Mohs Scale : 6-7  

 Crystal System : Trigonal


Jasper

Yellow, Brown Agates

Chemical Formula :  SiO2 

Mohs Scale : 6.5 - 7

Crystal System : Trigonal ( microcrystalline)



Amazonite

Chemical Formula :  KAlSi3O8

Mohs Scale : 6 - 6.5

Crystal System : Triclinic


Jasper

                 Quartz

Tiger's Eye



Aventurine