HI
try
www.google.com
and just type in those words Tibetan Black Quartz
http://www.crystalsandjewelry.com/metaphysicalproperties_t.html
Tibetan "Black" Quartz
Tibetan "Black" Quartz is a powerful stone with purifying energies and the vibration of the "OM". It is called "Black" quartz because it often has black inclusions, although clear examples exist too. It can be used for balancing all chakras and meridians. It can also be used for very powerful energy grids and deep spiritual meditation. Tibetan "Black" Quartz is also excellent for dissolving energy blockages and purifying energies. This makes it superb for protection of the aura or an environment and will also purify the aura or environment. Tibetan "Black" Quartz is often used in the corners of a room for purifying energies and protecting the space from negative energies. Wearing or carrying this type of quartz will cleanse the aura and protect it from negative influences, as well as helping ground the wearer. Physically, Tibetan "Black" Quartz is used in crystal healing for powerful healing of any type, removal of toxins and other impurities, and moving illness energies out of the body.
and
Sardonyx
Description: Sardonyx gemstones are part of chalcedony family. Sardonyx assists in bringing happiness to relationships and marriage. The gemstone emits good fortune and encourages self-control and provides courage.
Color: Blue, Blue Lace, Moss, Pink, Red, Snakeskin
Hardness: 6.5 - 7.0
Source: Worldwide
Sardonyx is the russian birthstone for the month of July.
The sardonyx gemstone is the traditional, arabic and polish birthstone for the month of August.
For the month of September, Sardonyx is the roman and polish birthstone.
http://www.gemstonemeanings.com/gemstones/sardonyx.htm
take some time having a look around - and see which sites you agree with - let us know how you go!
MARINA