價格：免費
更新日期：2017-02-18
檔案大小：22M
目前版本：1.0.1
版本需求：Android 4.0.3 以上版本
官方網站：http://geology.uaic.ro/andrei.apopei/
Email：andrei_ionut1987@yahoo.com
聯絡地址：ROMANIA
Read the time on the clock and learn the Mohs Scale of Hardness
The Mohs’ hardness scale was developed in 1822 by Carl Friedrich Christian Mohs (a german geologist and mineralogist). This scale is a chart of relative hardness and resistance of the various minerals (1 – softest to 10 – hardest). Hardness is determined by scratching the mineral with a mineral or substance of known hardness.
Made by a Geologist for Geologists.
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Note: I constantly update this application with new features and photos.
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