This is the crystal cave of giants found in the Naica Mine, Chihuahua, Mexico. These are Selenite crystals (gypsum) and are the largest crystals ever discovered...
Selinite is one of the best stones to open up the upper chakras and the trans-personal chakras. The energy can then be assimilated into the body through grounding stones like hematite and black tourmaline.
It can also be used for aligning the spine, emotional relase, and thought transmission.
Check out some of the new stones from  the Tucson Gem Show
Selenite lamps, hearts, spirals, and wands
Crystal skulls carved from mookite and red jasper.
Anandalite
One of the most popular stones I have. Ananda means divine bliss and the stone, which is a variety of quartz,  flashes a multitude of rainbow colors. This stone comes from only one mine in central India. I was able to buy directly from the owner of the mine, which helps keep the prices much more reasonable. Anandalite will open the third eye and crown chakras, and fill the body will pulsating vibratory energies. The stone will definitely live up to its name of divine bliss.
Orange Calcite
Mookite, which is Australian Jasper, is good for the stomach and spleen. Red jasper was used by Native American shamans for health and protection.
Orange calcite is a very powerful 2nd chakra stone. It stimulates the creative and sexual energies. Orange calcite also helps alleviate lethargy and helps with depression. These are high quality deep orange pieces from Mexico.
Spirit Quartz
Only one left! This stone comes from South Africa. This is the amethyst variety, it also comes in white quartz and citrine colored.  The amethyst variety helps open the mind to one's higher self, and bring about a calmness of mind and freedom from fear.
Turquoise
This Turquoise comes from New Mexico. Turquoise was used by the Egyptians to make beads dating back to 4000 B.C.
It is also a sacred stone of the Native Americans. Turquoise opens up the throat chakra and helps one with expression of inner truths.
Pink and Green Tourmaline
Aquamarine
The parallel lines of tourmaline cause the stone to run high electrical currents of energy. Tourmaline and quartz are the only minerals that posses the qualities of piezoelectricity and pyroelectricity, which means the stone will take an electrical charge when pressure or heat is applied. Pink and green tourmaline are used to express the feelings of the heart and when used in crystal healings should be pointed toward the throat chakra for full expression. The green tourmaline pictured is a high quality transparent stone.
Aquamarine is a throat chakra stone, and is used to achieve clarity of communication and also has a calming and cooling effect.
Malachite
The premiere stone to be used on the solar plexus chakra to release emotions.
Prehnite
A good stone to take on a retreat to calm and quiet the mind that will lead to inner peace.
Moldavite: the extraterrestrial gem stone that fell to earth
Moldavite is one of my favorite stones. Sleeping with it on your 3rd eye with stimulate your dreams like you have never seen before. Moldavite will speed up any transitions that you may be going through, and like all tektites will enable communication with extraterrestrial beings from other dimensions.
Tibetan Quartz
One of the best stones for spiritual protection and purification. Also works great for meditation and cleansing any negative energies that may be present in a room.  These are very high quality quartz with great clarity, much nicer than than the opaque variety with lots of black inclusions. I also have quite a few that are phantoms.
The stones appear to be primarily composed of Amethyst, but they contain a wealth of other minerals as well. Their discoverer has named them Auralite. (The name Auralite-23 used above denotes that there are at least seventeen different minerals in each specimen of Auralite.) As with the mineral known as Super-Seven, there is a unique synergy of energies in Auralite-23.
Auralite-23 crystals are about 1.2 billion years old, having been formed during the Meso-proterozoic age, at the time when multicellular creatures first emerged and began to flourish. It has been suggested that meteoric impacts during this time brought rare metallic ores to the surface, where they eventually dissolved and were incorporated into the structure of the growing Amethyst crystal now called Auralite. The elements identified by assays using x-ray diffraction include the following 35, present in various samples.
Ag, Au, Al, Ba, Be, Bi, Ca, Cd, Co, Cr, Cu, Fe, Hg, K, La, Mg, Mn, Mo, Na, N, P, Pd, Pb, S, Sb, Sc, Sr, Th,Ti, Tl, U, V, W, Zn, Zr.
The crystals themselves are structured layers of phantomed chevrons composed of three base three quartz species, Amethyst, Citrine and a rare form of metamicted green quartz. The mineral compounds they contain reportedly include Titanite, Cacoxenite, Lepidocrosite, Ajoite, Hematite, Magnetite, Pyrite, Goethite, Pyrolusite, Gold, Silver, Platinum, Nickel, Copper, Iron, Limonite, Sphalerite, Covellite, Chalcopyrite, Gialite, Epidote, Bornite and Rutile.
Where there are feelings of low emotion and depression, "AURALITE" Crystal can help to lift away the energies that follow such feelings. This is also a stone that can help ease, and even put a stop, to sleep disorders that are closely related to Insomnia, or where it is Insomnia alone, with no known cause.
 "AURALITE" Crystal helps to ease nerves and anxiety, as well as helping to lower the trigger of panic attacks, and the effects that follow. It is also a stone that can be called upon for comfort and calming, during times of shock and distress.
 "AURALITE" Crystal helps to relax the body and can be beneficial in the removal of tension, headaches, eye strain; muscle discomfort and muscle spasms. It can also be of help to vascular health, bringing an improved function and healing.
 Due to this stones relaxing and spiritual properties, it can be a very good support during meditation, astral travel, past life regression, and to the being that connects with spirit for the help of the self and of others.
Beautiful crystal skulls carved by Brazilian master Leandro.
Auralite 23