| Monikko | chalcedonies |
A form of fine-grained quartz that is nearly transparent or has a milky translucence; it fractures conchoidally.
Tectosilicate minerals, quartz group – Silica (silicon dioxide, SiO₂) – Trigonal (quartz) or monoclinic (moganite) – 60 g/mol – Various – Absent – Uneven, splintery, conchoidal – 6–7 – Waxy, vitreous, dull, greasy, silky – White – Translucent – 2.59–2.61.
A form of fine-grained quartz that is nearly transparent or has a milky translucence; it fractures conchoidally.
Agate
A form of fine-grained quartz that is nearly transparent or has a milky translucence; it fractures conchoidally.
Carnelian