Middlebackite
A variety of Minerals
What is Middlebackite?
Middlebackite is an organic mineral with the formula Cu2C2O4(OH)2. It was first discovered within a boulder from the Iron Monarch quarry in South Australia in June 1990. Peter Elliott from the University of Adelaide, Australia, identified the structure of the mineral 25 years later. He determined its crystal structure through single-crystal X-ray diffraction using synchrotron radiation. Elliot named the mineral for the Middleback Range where it originated. In 2018 middlebackite was found in Val di Fiemme, Italy, during researches that brought to the discovery of a new mineral named fiemmeite.
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Middlebackite before comparing listings or appraisals.
Size & Weight
Larger, intact specimens usually command higher prices.
Rarity & Demand
Scarce material or popular varieties sell at a premium.
Condition & Finish
Chips, repairs, and heavy wear lower value; clean prep helps.
Treatment & Provenance
Untreated specimens with documented locality are prized.
Middlebackite Localities Map
See where Middlebackite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Turquoise-blue
- Hardness (Mohs)
- 2
- Density
- 3.64 g/cm³
- Streak
- Pale blue
Chemical Properties
- Chemical Formula
- Cu2C2O4(OH)2
- Elements
- C, Cu, H, O
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Middlebackite FAQs
How do I identify Middlebackite?
Middlebackite can be identified by its hardness of 2 on the Mohs scale, Turquoise-blue color. Look for these key characteristics when examining specimens.
What color is Middlebackite?
Middlebackite typically appears in Turquoise-blue. Color can vary depending on impurities and formation conditions.
How hard is Middlebackite?
Middlebackite has a hardness of 2 on the Mohs scale. This makes it a soft mineral that can be scratched easily.
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