.

Discerningly Versed - Effective Iterative Learning Quiz Questions - Oxide Minerals II
Discerningly Versed - Effective Iterative Learning


Which of these pairs of minerals are oxides and NOT hydroxides ?

 

Geotite Brucite
Chalcedony Quartz
Limonite Manganite
Bauxite Diaspore

Sapphire is a blue variety of which oxide mineral ?

 

Opal
Spinel
Hematite
Corundum

An amorphous form of hydrated silicon dioxide used as a gemstone is

 

Carnelian
Citrine
Onyx
Opal

A reddish-yellow variety of chalcedony used as a gemstone is

 

Carnelian
Citrine
Onyx
Opal

Fire opal, used as a gemstone, is what colour ?

 

Black
Green
Orange Red
Yellow

Which oxide mineral is the chief source of aluminium ?

 

Bauxite
Gibbsite
Limonite
Brucite

A variety of chalcedony with alternating black and white bands used as a gemstone is

 

Carnelian
Citrine
Onyx
Opal

Known as false topaz, a brownish-yellow variety of quartz and a gemstone is

 

Carnelian
Citrine
Onyx
Opal

Chryoprase is an apple green variety of which mineral used as a gemstone ?

 

Chalcedony
Opal
Corundum
Quartz

Rock crystal is a pure transparent variety of which mineral ?

 

Chalcedony
Opal
Corundum
Quartz


.
Discerningly Versed www.dniv.com 2012