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Ore or Metal Extraction

Use groups earth materials by what people actually do with them. Wikipedia notes that "since antiquity, varieties of quartz have been the most commonly used minerals in the making of jewelry and hardstone carvings," a use that has nothing to do with the mineral's scientific classification. This dimension connects a material to its place in human hands rather than only in the ground.

Facts
Comparison
Formation Origin
The oxide anion (O2-) bonded to one or more metals. 1
Ore or Metal Extraction
Filter Results2 entries
Connections

Classifies

Chrysoberyl, Materials

Entity-backed identity for the material classification this material already carries as an enum fact, pointing at the class subcategory of the same name. The enum fact itself stays on the entity unchanged.

Corundum, Materials

Entity-backed identity for the material classification this material already carries as an enum fact, pointing at the class subcategory of the same name. The enum fact itself stays on the entity unchanged.

Hematite, Materials

Entity-backed identity for the material classification this material already carries as an enum fact, pointing at the class subcategory of the same name. The enum fact itself stays on the entity unchanged.

Magnetite, Materials

Entity-backed identity for the material classification this material already carries as an enum fact, pointing at the class subcategory of the same name. The enum fact itself stays on the entity unchanged.

Spinel, Materials

Entity-backed identity for the material classification this material already carries as an enum fact, pointing at the class subcategory of the same name. The enum fact itself stays on the entity unchanged.

Sources
1. Wikipedia: Oxide minerals
WikipediaOxide minerals, lead section
Quote, Oxide minerals, lead section
The oxide mineral class includes those minerals in which the oxide anion (O2-) is bonded to one or more metal alloys.
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