Let's Collect Rocks and Shells

by Shell Union Oil Corporation

This etext was produced by Justin (dopefish_justin@yahoo.com).

CONTENTS

COLLECTING SEASHELLS SEASHELLS. . .WHAT ARE THEY? THE SHELL AS AN ARCHITECT LET'S MEET SOME SHELLS WHERE TO LOOK STARTING A COLLECTION. . .HERE'S HOW COLLECTING ROCKS ROCKS ARE MADE OF MINERALS MAIN KINDS OF ROCKS COLLECTING GEMS FOR THE LUCKY FEW

INTRODUCTION

Millions of people throughout the world have found many hours of pleasure, adventure and education by collecting either rocks or shells.

This booklet won't tell you everything there is to know about rocks and shells. That would require many large volumes. We only want to arouse your curiosity about two delightful pastimes that are so broad and varied that they can lead to a career or a satisfying hobby.

Shell Oil Company's interest in the subjects comes from its history and the nature of its business. The name—chosen by a company that was founded years before anyone thought of drilling for oil—comes from the seashells this company brought from the Orient for use in mother-of-pearl items such as buttons and knife handles.

Now its world-famous emblem (the Pecten) is recognized by millions of people in every walk of life. It's on service stations, trucks, buildings, oil derricks and chemical plants. Even the company's industrial lubricants are named for shells because shells have the same scientific names everywhere in the world.

For an oil company, rocks have a special interest. Crude oil is found not in underground lakes or pools but in the tiny spaces between grains of sand or in the pores of rocks. Only certain types of rock formations are favorable to the accumulation of oil. Thus, oilmen need to know everything they can about the right kind of rocks.

Shell has scientists who work with rocks all day and laboratories filled with rock, mineral and crystal specimens. We are always learning new things about them.