Discover Precise Mineral Hardness Assessment with our instrument.
At EIE Instruments Private Limited, we take pride in delivering precise and reliable Mohs hardness scale instruments, empowering you to explore the fascinating world of mineral scratch resistance. Trust our expertise to elevate your mineral assessments and experience unmatched accuracy and efficiency with our cutting-edge hardness scale instruments. Discover the secrets of minerals with EIE Instruments Private Limited!
At EIE Instruments Private Limited, we adhere to the highest industry standards, including EN – 101, IS 13030, ISO 10545-13, ISO 10545-14, and ASTM-97. Our commitment to quality ensures that our Mohs hardness scale instruments deliver accurate and reliable results.
The Mohs scale of mineral hardness is an essential tool that characterizes the scratch resistance of various minerals. By assessing the ability of the hardest material to scratch a softer material, our instruments enable you to determine the relative hardness of minerals with ease and precision.
The Mohs scale represents an ordinal scale that establishes the relative hardness of minerals. For instance, corundum (9) is twice as hard as topaz (8), while diamond (1099) is nearly four times as hard as corundum. To facilitate your hardness assessments, we provide a comprehensive set of Mohs hardness kits thoughtfully designed to match the hardness of Mohs index minerals.
| HARDNESS | MINERAL | ABSOLUTE HARDNESS |
| 1 | Talc(Mg3Si4O10(OH)2) | 1 |
| 2 | Gypsum (CaSO4•2H2O) | 2 |
| 3 | Calcite (CaCO3) | 9 |
| 4 | Fluorite (CaF2) | 21 |
| 5 | Apatite(Ca5(PO4)3(OH-,Cl-,F-) | 48 |
| 6 | Orthoclase Feldspar (KAlSi3O8) | 72 |
| 7 | Quartz (SiO2) | 100 |
| 8 | Topaz (Al2SiO4(OH-,F-)2) | 200 |
| 9 | Corundum (Al2O3) | 400 |
| 10 | Diamond (C) | 1500 |
On the Mohs scale, a pencil lead has a hardness of 1; a fingernail has hardness 2.5; a copper penny, about 3.5; a knife blade, 5.5; window glass, 5.5; steel file, 6.5.[1] Using these ordinary materials of known hardness can be a simple way to approximate the position of a mineral on the scale.
Our Mohs hardness kit includes eight points, each corresponding to a specific Mohs hardness value. The set features hardness points of 2, 3, 4, 5, 6, 7, 8, and 9. Here's what our kit includes:
Each pick has hardness points of 2-9 on the Mohs hardness scale. The carefully selected alloys precisely match the hardness of the Mohs index minerals, ensuring accurate assessments.
Sharpen your hardness points effortlessly with the included grinding plate, ensuring optimal performance during testing.
Our streak plate allows for quick determinations of whether a mineral is "hard" or "soft," streamlining your assessments.
Use the glass plate for further hardness comparisons, enhancing your understanding of mineral scratch resistance.
With a hardness of 3.5, this plate serves as a reference point during your evaluations.
The kit also includes a magnet for additional convenience and utility during testing.
Access a comprehensive list of common minerals and their respective hardness values, supporting you in your assessments.
Our user-friendly instructions guide you through the hardness testing process, making it accessible to all users.
The components of our Mohs hardness equipment are in a compact and sturdy wooden case measuring 7" x 2 1/2" x 1 5/8". This design ensures minimal space consumption on your desk or shelf, promoting neat organization and easy accessibility.
EN – 101, IS 13030, ISO 10545-13, ISO 10545-14, ASTM-97
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