Orthoclase

Hardness ( Moh )

" 6

Crystal System

Monoclinic

Specific Gravity

2.6

Refractive Index

1.518 - 1.539

Birefringence

Family

Feldspar

Colour(s)

Colorless, greenish, greyish yellow, white, pink

Cleavage

Francture Type

Uneven

Luster

Streak

White

Transparency

Transparent to translucent

Formula

KAlSi3O8

Country

Found In Afghanistan,Algeria,Angola,Antarctica,Argentina,Armenia,Asia,Atlantic Ocean,Australia,Austria,Azerbaijan,Bailiwick of Guernsey,Belgium,Bolivia,Bosnia and Herzegovina,Botswana,Brazil,Bulgaria,Cameroon,Canada,Cape Verde,Chile,China,Cuba,Czech Republic,DR Congo,Ecuador,Egypt,Estonia,Ethiopia,Europe,Fiji,Finland,France,Germany,Greece,Greenland,Guinea,Hungary,Iceland,India,Indonesia,Iran,Iraq,Ireland,Italy,Japan,Jersey,Kazakhstan,Kenya,Kyrgyzstan,Madagascar,Malawi,Malaysia,Mali,Mauritania,Mexico,Middle East,Mongolia,Morocco,Mozambique,Myanmar,Namibia,Nepal,New Zealand,Niger,Nigeria,North Korea,North Macedonia,Northwest Africa Meteorites,Norway,Oman,Pacific Ocean,Pakistan,Papua New Guinea,Paraguay,Peru,Philippines,Poland,Portugal,Romania,Russia,Rwanda,Saudi Arabia,Slovakia,Slovenia,Somalia,South Africa,South Korea,Spain,Sri Lanka,Sweden,Switzerland,Taiwan,Tajikistan,Tanzania,Thailand,Turkey,UK,Ukraine,Uruguay,USA,Uzbekistan,Vietnam,Zimbabwe,Venus