Collecting Rocks and Minerals

Written by Gayle Olson

Rock and mineral collecting is a fascinating hobby which can be shared byrepparttar entire family. Before you get started with your new hobby it is important to understand something about minerals.

Rocks are made up of one mineral, or a mixture of minerals. Minerals are made up of elements, which are simple substances which cannot be broken down into any other substance. Sometimes minerals are made of only one element, but most minerals are made up of two or more elements. Many minerals are made up of a large number of elements.

Minerals are often found as shapeless lumps. These pieces are called "massive". Some minerals can also form special shapes, which can help you to identify them.

The mineral is said to "grow" whenrepparttar 116348 elements thatrepparttar 116349 mineral is made of gets built up in layers onrepparttar 116350 mineral's outside surface. Minerals grow into all kinds of rough shapes inrepparttar 116351 spaces between other minerals around them. If a mineral can grow freely, such as onrepparttar 116352 sea bed, or inrepparttar 116353 hole of a rock, it may form beautiful crystals.

Museum Collections

Written by Gayle Olson

Museums are places where collections are preserved and displayed. Visiting a museum is a terrific opportunity to learn more about art, science, technology, industry and our favorite hobbies and collectibles. Many museums offer educational programs, newsletters, libraries and guided tours to help visitors have a better understanding ofrepparttar collections. Museum exhibits teach us all aboutrepparttar 116347 world we live in. We may not be able to travelrepparttar 116348 world in search of treasures for our own collections. When we visit a museum we can enjoy collectibles and other objects which have been gathered from every part ofrepparttar 116349 world.

How did museums start? The word "museum" comes fromrepparttar 116350 Greek word mouseion, which means "temple ofrepparttar 116351 Muses." The Muses were goddesses ofrepparttar 116352 arts whose lives were removed fromrepparttar 116353 cares of everyday life. One ofrepparttar 116354 first mouseion's was founded in Alexandria, Egypt inrepparttar 116355 3rd century B.C. Every sort of information which was of interest to scholars was collected. Scholars lived and did their research there. On display were objects of art, instruments used in astronomy and surgery, elephant tusks andrepparttar 116356 hides of unusual animals. The Museum of Alexandria would today be known as a museum for scientific research.

Inrepparttar 116357 Middle Ages, cathedral treasuries and monasteries stored collections of ornamented objects such as cups and goblets which were used duringrepparttar 116358 celebration of mass and book covers and treasures which were relics of saints or martyrs. The public could only visit during special holy days or forrepparttar 116359 feast day ofrepparttar 116360 patron saint ofrepparttar 116361 church.

It was duringrepparttar 116362 Renaissance that princes and noble families in Europe took a renewed interest in art and history. Many treasures were collected; objects made of gold, silver and other precious metals. Curiosities and objects from faraway places were collected. Wealthy families took great pride in collecting beautiful possessions. Private collections could be found all across Europe. From Denmark to Italy these private museos were visited by scholars, artists and other important people who were travelingrepparttar 116363 continent. Some of these same treasures can still be seen inrepparttar 116364 galleries of museums today.

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