Property:Crystal/Hardness
From Crystal growing
Main article: Mohs scale
This property has type Text.
This property has certain allowed values:
- very strong (more than 2.5 on Moh`s scale)
- strong (more than 2 on Moh`s scale)
- relatively strong (more than 1.5 on Moh`s scale)
- fragile (more than 1.25 on Moh`s scale)
- very fragile (less than 1.25 on Moh`s scale)
Showing 1 related entity.
{ "type": "PROPERTY_CONSTRAINT_SCHEMA", "constraints": { "type_constraint": "_txt", "allowed_values": [ "very strong", "strong", "relatively strong", "fragile", "very fragile" ] } }