All minerals have a certain hardness. The hardness of a mineral is determined by performing a scratch test. A scratch test is based on the Moh’s scale of hardness. A German scientist invented this scale by taking several known, pure minerals... Read More

No, it is not true. Many marbles do have veins, but there are some that appear to have no veins at all. On the other hand many granites have no veins but there are also those that do have veins. Determining if a stone is marble or granite should not... Read More

No, it is absolutely false. There are soft, dark marbles and there are hard dark marbles. For example, negro maquina is a very soft marble. On the other hand Vermont Green is a very hard dark marble. Do not rely on color alone to determine the... Read More

Granite is much harder than marble. The hardness of stone is measured on a scale of 1 to 10. Ten is the hardest mineral. Diamond is a ten. Most marbles fall in the 3-5 range and granites fall into the 7-8 range. A simple test to determine if you are... Read More