positive crystal :a doubly refracting crystal in which the index of refraction for the extraordinary ray is greater than for the ordinary ray, and the former is refracted nearer to the axis than the latter, such as as quartz and ice.
In positive crystals the refractive index for e-ray is greater than refractive index for o-ray i.e. µe> µo. In negative crystals the refractive index for o-ray is greater than reflective index for e-ray i.e. µ0> µe. In positive crystals e-ray travels slower than o-ray in all directions except along the optic axis.
negative crystal (plural negative crystals) (optics) A uniaxial crystal, such as one of calcite, in which the extraordinary wave travels faster than the ordinary wave. A crystal that contains a cavity.
Crystal quartz is a positive uniaxial crystal. Optical grade crystal quartz features high transmittance from 200nm to 3500 nm, a high damage threshold, and excellent resistance to both scratching and chemical attacks.
A uniaxial, birefringent crystal such as calcite or ruby in which the velocity of the extraordinary ray surpasses that of the ordinary ray.
Citrine. This crystal radiates joy and positivity. It is a light maker that imparts wonder, delight and enthusiasm in the holder. It is also a brain stimulator that will raise self-esteem and self-confidence.
Quartz is an example of a naturally occurring piezoelectric crystal. Quartz crystals are made of silicon and oxygen atoms in a repeating pattern. In quartz, the silicon atoms have a positive charge and oxygen atoms have a negative charge.
Some people believe the aquamarine promotes healing energy, reduces the fear of water, and can even bring a wayward lover back. Some shamans use it as a meditative stone.
You can wear Rose Quartz anywhere on the body and it will fill you with a healing loving light. However, as Rose Quartz is primarily a heart chakra stone, it loves to be placed in the heart space so that it can clear any blockages and ensure your heart is open and ready to receive love.
SUNLIGHT. Leave them out in daylight on a windowsill for 30 minutes (even on a cloudy day), and the Sun will do the job. Some people like to charge their crystals under the light of a Full Moon, although not everyone thinks this is a potent enough power to charge a crystal.
What crystals bring luck and money? The best crystals for money and overall luck include green jade, green aventurine, malachite, citrine, clear quartz, and tiger's eye.
Negative Crystal Inclusions :Return to Top. This is the general term for a cavity within a crystal. Such a cavity may be of a completely irregular form, or it may be a regular form.
Under normal conditions, crystals contain tiny defects or impurities, including missing atoms. These imperfections strongly influence the optical, electronic, mechanical and magnetic properties of industrial crystals. The same is often true of gems.
Other stones that work well when it comes to clarity and focus include Tigers Eye, Calcite, Blue Sapphire, Blue Scapolite, Pyrite, Tourmaline, Selenite, and Aventurine.
It is a negative uniaxial crystal with very high birefringence, wide spectral transmission and moderate refractive index. Its extreme birefringence gives it both negative and positive relief, based on orientation.
According to Greek beliefs, this gemstone has the power to channel love and affection in one's life. Amethyst is the birthstone for people born in February and has special effects on channeling happiness and prosperity in their lives. However, anyone can wear this gemstone and channel positive energy in their lives.
The Taurus zodiac sign is related to rose quartz, which has a pink hue. This sensitive sign is a fantastic match for the tempting pink gemstone. The planet Venus, which also rules the zodiac sign of Taurus, is the ruler of the rose quartz.
Amethyst is considered to be one of the best crystals for anxiety but there are other gems that can help too. Rose Quartz, Morganite, and Lepidolite all have incredible soothing energy. Smoky Quartz, Clear Quartz, Kyanite and Aquamarine are good for encouraging you to go with the flow and think clearly.
Painite : Not just the rarest gemstone, but also the rarest mineral on earth, Painite holds the Guinness World Record for it.
They balance the soul, alleviate anxiety, and restore confidence. This stone is used to increase wealth and vitality. Tiger's Eye brings protection against negative energy and strengthens self-worth.
The Weaknesses of Engineered Stone – Quartz
Household chemicals that are alkaline-based or highly acidic like bleach or heavy duty cleaners may cause damages on man-made quartz. Less resistant to compact and heat.
The smoky quartz crystal brings abundance and prosperity luck. Place a smoky quartz crystal on the career (northern) corner of your desk for business luck.
Clear quartz is the birthstone of April and therefore the zodiac signs of Aries' and Taurus' that were born in that month. It is also associated with the planet Venus, which rules Taurus and Libra. Its abilities are particularly beneficial to Aries and Scorpio.