| 1. | The company is working with tetrahedrite, a common mineral with thermoelectric properties.
|
| 2. | Pyrite, sphalerite, galena, and tetrahedrite / tennantite are the major sulfide minerals.
|
| 3. | The two have very similar properties and is often difficult to distinguish between tennantite and tetrahedrite.
|
| 4. | It crystallizes in the tetragonal crystal system and forms as rounded dissemations within tetrahedrite in quartz veins.
|
| 5. | Chatkalite can have sizes ranging from rounded grains of about 100 micron when found within a tetrahedrite.
|
| 6. | California-based Alphabet Energy announced plans to offer a thermoelectric device based on tetrahedrite to turn heat into electricity.
|
| 7. | In the supergene sulfide enriched zone, ore minerals include pearceite, proustite, tetrahedrite, polybasite, and pyrargyrite.
|
| 8. | From 1953 until present, all exploration, development and production has been focused on the tetrahedrite silver-copper ores.
|
| 9. | The company claimed that other thermoelectrics typically produce about 2.5 percent efficiency, while tetrahedrite could achieve 5 to 10 percent.
|
| 10. | Other thermoelectrics are either scarce, expensive ( $ 24 146 / kg vs $ 4 for tetrahedrite ) and / or toxic.
|
मोबाइल