For the Majority of Minerals,the Streak Color Obtained When the Mineral

question 2

Multiple Choice

For the majority of minerals,the streak color obtained when the mineral is scratched against a porcelain plate is ____________.

• A)likely to be diagnostic only if the mineral is hard enough to scratch porcelain
• B)more variable than the color in a hand sample among crystals
• C)less variable than the color in a hand sample among crystals
• D)always dark brown or black

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Definitions:

Annual Growth Rings

Concentric rings found in the wood, indicating the age of a tree by representing a year of growth.

Woody Stems

Hard, lignified plant structures that provide support and transport nutrients and water, characteristic of trees and shrubs.

Vascular Cambium

A layer of plant tissue located between the xylem and phloem; it contributes to the growth in stem and root diameter.

Lateral Meristem

Plant tissue located in the stem and root that enables growth in thickness or girth in a maturing plant.