Show the science teacher the stone and ask for their opinion.
Rocks with purple crystal inside.
Compare it to the pictures of crystals on the internet.
In geology pictures of rocks can be used to help you best determine which of the three major types a particular rock belongs to.
By comparing your rock sample with photographic examples you can identify key characteristics such as how the rock was formed what minerals and other materials it contains and where the rock may have come from.
These dugway geodes have bands of blue and pink.
Igneous sedimentary or metamorphic.
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Its rock name is rhyolite porphyry.
Although fairly rare you can find purple blue or violet minerals in these four types of rocks ordered from most to least common.
The geode at the left and the one at the top of the page are both dugways from utah.
One of the most common finds when geometric crystals are not present is a geode lined with chalcedony a microcrystalline variety of quartz.
However as these.
There is no easy way of telling what the inside of a geode holds until it is cut open or broken apart.
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Purple crystals are naturally the birthstones of people born in the new year or just after the winter solstice which is anywhere between the last week of december until the end of january.
The blue crystals attract attention and make llanite an interesting lapidary material.
The colors come from the different minerals that flowed through the bubble so many millions of years ago.
But sometimes there are other interesting landscapes inside.
Purple rocks which may range in hue from blue to violet get their color from the minerals those rocks contain.
An example is quartz silicon dioxide sio 2.
Break open a gigantic geode this large rock has amazing crystals inside.
Purple crystals tumbled when you look at purple crystals in tumbled form you cannot help but be reminded of the sky s tones of blue and violet during winter.
8 years and up.
Take the washed rock to the local school system.
Minerals are classified based on characteristics such as hardness and crystal shape e g hexagonal cubic.
Also search for rock crystal or rock and crystal identification websites.
Look at the crystal using a magnifying lens.
Quartz is the most common mineral in the earth s crust.
All geodes are not created equal the first one is quite hollow but for a nice layer of medium sized blue crystals.
Llanite is a rock found in texas and a few other locations that contains tiny euhedral well formed crystals of blue quartz in a groundmass of pink and brown feldspar.
Ask to speak to the high school science teacher.
Pegmatites composed primarily of large crystals such as granite.
For example the purple variety of quartz is called amethyst and is the state mineral of south carolina.
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Sunyik natural amethyst quartz crystal cluster druzy geode specimen gemstone sculpture sphere 0 2 0 3lb.
Rich purple amethyst perfect white calcite crystals.
