Archive | November 2012


Fluorite (also called fluorspar) is a halide mineral composed of calcium fluoride, CaF2. It is an isometric mineral with a cubic habit, though octahedral and more complex isometric forms are not uncommon. Crystal twinning is common and adds complexity to the observed crystal habits.

The word fluorite is derived from the Latin root fluo, meaning “to flow” because the mineral is used as a flux in iron smelting to decrease the viscosityof slags at a given temperature. This increase in fluidity is the result of the ionic nature of the mineral. The melting point of pure calcium fluoride is 1676 K.

In 1852 fluorite gave its name to the phenomenon of fluorescence, which is prominent in fluorites from certain locations, due to certain impurities in the crystal. Fluorite also gave the name to its constitutive element fluorine.[2]

Fluorite has a very low dispersion, so lenses made from it exhibit less chromatic aberration than those made of ordinary glass.[22] However, naturally-occurring fluorite crystals without optical defects were only large enough to produce microscope elements.

With the advent of synthetically-grown fluorite (calcium fluoride crystal), it could be used instead of glass in some high-performance telescopes and camera lens elements. Its use for prisms and lenses was studied and promoted by Victor Schumann near the end of the 19th century.[23]

In telescopes, fluorite elements allow crisp images of astronomical objects even at high magnificationsCanon Inc. produces synthetic fluorite crystals that are used in their more expensivetelephoto lenses.

Exposure tools for the semiconductor industry make use of fluorite optical elements for ultraviolet light at wavelengths of about 157 nanometers. Fluorite has a uniquely high transparency at this wavelength. Fluorite objective lenses are manufactured by the larger microscope firms (Nikon, OlympusCarl Zeiss and Leica). Their transparence to ultraviolet light enables them to be used forfluorescence microscopy.[24] The fluorite also serves to correct optical aberrations in these lenses. Nikon has previously manufactured at least one all-fluorite element camera lens (105 mm f/4.5 UV) for the production of ultraviolet images.[25]

Hydrofluoric acid (HF) is a solution of hydrogen fluoride in water. It is a valued source of fluorine and is a precursor to numerous pharmaceuticals such as fluoxetine (Prozac) and diverse materials such as PTFE (Teflon).

Hydrofluoric acid is a highly corrosive acid, capable of dissolving many materials, especially oxides. Its ability to dissolve glass has been known since the 17th century, even before hydrofluoric acid had been prepared in large quantities by Carl Wilhelm Scheele in 1771.[2] Because of its high reactivity toward glass and moderate reactivity toward many metals, hydrofluoric acid is usually stored in plastic containers (although PTFE is slightly permeable to it).[3]

Hydrogen fluoride gas is an acute poison that may immediately and permanently damage lungs and the corneas of the eyes. Aqueous hydrofluoric acid is a contact-poison with the potential for deep, initially painless burns and ensuing tissue death. By interfering with body calcium metabolism, the concentrated acid may also cause systemic toxicity and eventual cardiac arrest and fatality, after contact with as little as 160 cm2 (25 square inches) of skin.




“The story of man is the story of a search for treasures. Most search for material wealth, but we as shamans are searching for something much greater and far more vast. For us the greates treasure is the gift of truth, and beauty, and the timeless places of power that return us to our innermost dream and make life worth living. – Lynn Andrews




Once upon a time and happily ever after

This once upon a time is never ending
Forever lasting its been sitting right in front of me
Our story is a decade long broken road
In the beginning we were thoughtless
But we burned our pathway into our hearts
Happily ever after is still far off
Still shadowed by the invisible villains of life
We have survived the worse things and
Time and space have yet to pull us apart
The string that attaches us is knotted but not frayed
Time and space have played their cruel jokes
Now its time to see the story in between
We began long ago but got lost in dreams
Once upon a time need not start over
But begin again at happily ever after

picture is from *Laufoo on deviantart

  the poem is mine.

Wednesday, August 01, 2012

black and blue

you’ve held my heart in your grasp for so long
for so much of that time we spent it in denial
now the words are in the open and we are lost
I’m open to your games, cept for when they are empty

black and blue thats how you always leave me
not in a physical sense but my heart is hurting
pulsing and bleeding as old scars are reopened
why can’t you see the unshed tears I have

letting me go was hard the first time I know
because it took us years to say what we thought was goodbye
and now there is this tiny flame that is overwhelming
terrifying and exhilarating as we figure it all out

black and blue is how my whole being feels
knowing your head rules your whole being
leaves my heart trampled and ready to explode
waiting for the right moment like a bomb ticking away

when the timer goes off our fates will be decided
leaving a limbo of unanswered questions and thoughts
scaring our hearts no matter the outcome
leaving us both black and blue and confused

Sunday, July 29, 2012

in the light

when the sun is shining my heart beats
my mouth smiles and my eyes see roses

come dusk as the sun slips to the sea
my heart slows my eyes are blinded

as the rays sparkle and glitter my being is whole
once they are dimmed i shatter amongst the moonlight

I play the part of happy so well they never know
beyond my smile the layers are only darkness

Not able to break free of the patterns
barreling through life singlemindedly

when the sun is shining you think my heart is beating
but is shattered with the night and cannot beat

Posted by at 11:11 PM