Well a geologist can test for many things and it is loosely based around having a blood test for a wide range of STD's this is very important to the properties in that it all relies on the answer.
To see if a rock is hard are soft.
Geologists identify minerals that are too small to be seen in a hand specimen using powerful microscopes. Minerals are classified according to their physical properties such as color, streak, cleavage, hardness and crystal form.
Geologists are people who study rocks and minerals.
assay tests on rock samples.... usually varied standard methods of testing exist at good assay labs place for testing different rock samples for specific minerals
The plural of geologist is geologists. As in "the geologists are studying the meteor sample".
To see if a rock is hard are soft.
Characteristic properties are unique for every different substance.
People (geologists) have organized rocks and minerals into categories to better study them and compare their properties. The rocks themselves do not care about organization.
why the tensile properties of most brittle materials are accessed by transverse bending tests and not ascertain by tensile tests
I suppose hardness and density tests on rock samples. Making seismic soundings and measuring the results, analyzing the data collected.
Geologists identify minerals that are too small to be seen in a hand specimen using powerful microscopes. Minerals are classified according to their physical properties such as color, streak, cleavage, hardness and crystal form.
By practicing some tests on it.
geologists!!! ... "biologists" not "geologists"...
According to geologists, quartz is associated with other minerals and specimens which contain the same properties such as amethyst, citrine, rock crystal, rose quartz and smoky quartz.
somthing you can feel, see and touch in contrast to chemical properties which require tests to obtain results
For the safety of findings it is recommended to do more tests.
Testing the chemical properties of a mineral might damage the mineral sample. Also, these tests can be complex and may require expensive equipment.