Mineralogy Portal

Carnelian

🔍 Carnelian is a variety of chalcedony, a cryptocrystalline form of quartz, whose color tone can vary from pale orange to dark red. Chemical formula: SiO2 Hardness (Mohs): 7 Crystalline...

Carnelian

🔍 Carnelian is a variety of chalcedony, a cryptocrystalline form of quartz, whose color tone can vary from pale orange to dark red. Chemical formula: SiO2 Hardness (Mohs): 7 Crystalline...

Agate

🔍 Agate is a compact fibrous variety of chalcedony (quartz), with a zoned structure visible to the naked eye also due to a diversity of colour, thickness and transparency. Agates...

Agate

🔍 Agate is a compact fibrous variety of chalcedony (quartz), with a zoned structure visible to the naked eye also due to a diversity of colour, thickness and transparency. Agates...

Amethyst

🔍 Quartz is a violet variety of quartz, whose crystals form inside basaltic rock geodes.' Chemical formula : SiO2 Hardness (Mohs): 7 Crystalline System : Trigonal Luster: Vitreous ⏳ The...

Amethyst

🔍 Quartz is a violet variety of quartz, whose crystals form inside basaltic rock geodes.' Chemical formula : SiO2 Hardness (Mohs): 7 Crystalline System : Trigonal Luster: Vitreous ⏳ The...

Aquamarine

🔍 Aquamarine is a blue-green variety of beryl, whose crystals form inside cavities in pegmatite rocks, granite or in metamorphic rocks. 𝙁𝙤𝙧𝙢𝙪𝙡𝙖 𝙘𝙝𝙞𝙢𝙞𝙘𝙖: Be3Al2Si6O18 𝘿𝙪𝙧𝙚𝙯𝙯𝙖 (𝙈𝙤𝙝𝙨): 7.5 - 8 Size:...

Aquamarine

🔍 Aquamarine is a blue-green variety of beryl, whose crystals form inside cavities in pegmatite rocks, granite or in metamorphic rocks. 𝙁𝙤𝙧𝙢𝙪𝙡𝙖 𝙘𝙝𝙞𝙢𝙞𝙘𝙖: Be3Al2Si6O18 𝘿𝙪𝙧𝙚𝙯𝙯𝙖 (𝙈𝙤𝙝𝙨): 7.5 - 8 Size:...