General information to the minerals

in this stone-encyclopedia

All stones included in this encyclopedia can be bought in our shop, if they are not available in the online shop – whether they are in crystalline, tumbled or rubbed (e.g. pendants, necklaces etc.) form.

Concerning the origin only the main mining regions are listed in our encyclopedia.

The colour specifications vary with the origin of the minerals.

Degrees of hardness

The hardness of minerals relays on the hardness test from Friedrich Mohs (1773-1839), which is used primarily in the mineralogy. Mohs, a geologist, scratched different minerals at each other and sorted them according to their hardness. By assigning exemplary numerical values to wide-spread and thus easily accessible minerals, an ordinal scale resulted, named the Mohs scale, which is often used in mineralogy and geology.

Stones which are not suitable for water treatment because of their chemical composition:

Azurite, Chrysocolla, Dioptase, Dysthen, Galena, Hematite, Copper, Lepidolite, Magnetite, Malachite, Marcasite, Pyrite, Selenite (dissolves), Tiger Iron, Turquoise, Cinnabar

General information for the here listed stones and minerals.

We want to inform you, that the opportunities of healing with healing stones, minerals, crystals and gemstones cannot replace medical advice or help. Everything that is written on this websites and all information on this homepages are no instructions for therapy or diagnosis in the medical sense. We use information from the internet or several specialist publications, therefore the success of healing cannot be expected certainly.

Mineral hardness (Mohs)

Degrees of hardness 1

Stone: Talcum
Type of testing: can be scraped with the fingernail

Degrees of hardness 2

Stone: Gypsum or Halite
Type of testing: can be scratched with the fingernail

Degrees of hardness 3

Stone: Calcite
Type of testing: can be scratched with a knife easily

Degrees of hardness 4

Stone: Fluorite (Fluorspar)
Type of testing: can be scratched with a knife easily

Degrees of hardness 5

Stone: Apatite or Manganese
Type of testing: can still be scratched with a knife; the hardest human tissue – tooth enamel – has this degree of hardness

Degrees of hardness 6

Stone: Orthoclase (Feldspar)
Type of testing: can be scratched with a steel file

Degrees of hardness 7

Stone: Quartz
Type of testing: can be scratched with window glass

Degrees of hardness 8

Stone: Topaz
Type of testing:

Degrees of hardness 9

Stone: Corundum
Type of testing: a variety of Corundum is Sapphire

Degrees of hardness 10

Stone: Diamond
Type of testing: the hardest naturally occurring mineral, can be scratched only by itself and (with heat) of boron nitride

Information on hardness of minerals are always using the Mohs scale, unless nothing else is specifyd.