Opal,Mineraloid,Colorless, white, yellow, red, orange, green, brown, black, blue, pink

Opal

Opal

Hardness ( Moh )

" 5.5 - 6.5

Crystal System
Amorphous
Specific Gravity

2.1

Refractive Index

1.370 - 1.470

Birefringence

Family

Quartz

Colour(s)

Colorless, white, yellow, red, orange, green, brown, black, blue, pink

Cleavage

Francture Type

Conchoidal to uneven

Luster

Streak

White

Transparency

opaque, translucent, transparent

Formula

SiO2·nH2O

Country
Found In Afghanistan,Algeria,Angola,Antarctica,Arctic Ocean,Argentina,Armenia,Atlantic Ocean,Australia,Austria,Belgium,Bolivia,Brazil,Bulgaria,Cambodia,Cameroon,Canada,Cape Verde,Chile,China,Colombia,Costa Rica,Cuba,Czech Republic,Czech Republic/Germany/Poland,Denmark,DR Congo,Ecuador,Egypt,Ethiopia,Europe,Faroe Islands,Fiji,Finland,France,Georgia,Germany,Greece,Greenland,Honduras,Hungary,Iceland,India,Indian Ocean,Indonesia,Iran,Israel,Italy,Japan,Jordan,Kazakhstan,Kenya,Kosovo,Libya,Madagascar,Malaysia,Mali,Marshall Islands,Mauritania,Mexico,Middle East,Mongolia,Morocco,Myanmar,Namibia,New Zealand,North Macedonia,Norway,Oman,Pacific Ocean,Pakistan,Panama,Papua New Guinea,Paraguay,Peru,Poland,Portugal,Romania,Russia,Rwanda,Saint Lucia,Saudi Arabia,Serbia,Slovakia,Somaliland,South Africa,South Korea,Spain,Sri Lanka,Sweden,Switzerland,Tajikistan,Tanzania,Thailand,Togo,Turkey,UK,Ukraine,USA,Uzbekistan,Vanuatu,Venezuela,Vietnam,Zimbabwe,Mars