Difference between revisions of "Mineral Identification Flowchart"
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Released Regents questions that cannot be answered without this table, listed by exam. Each link opens the question with its answer key; the standard is the one the question assesses. The exams through August 2026 were given with the earlier edition of the ESSRT, which has the same table. | Released Regents questions that cannot be answered without this table, listed by exam. Each link opens the question with its answer key; the standard is the one the question assesses. The exams through August 2026 were given with the earlier edition of the ESSRT, which has the same table. | ||
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Latest revision as of 16:31, 25 October 2026
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The Mineral Identification Flowchart from the Reference Tables for Earth and Space Sciences (ESSRT) is a two-page key for identifying common minerals from their physical properties. It primarily supports HS-ESS2-3.
What the Mineral Identification Flowchart shows
Each path through the flowchart begins with luster. For nonmetallic minerals the next questions are whether the mineral is harder or softer than glass and whether it shows cleavage, and in how many directions; for metallic minerals the next question is the color of the streak. Boxes at the end of each path give distinguishing features (such as a salty taste, a reaction with acid or a soapy feel), luster, color and hardness, and name the mineral. Page 1 covers the nonmetallic minerals that are harder than glass, including quartz, garnet, olivine, amphibole, pyroxene and the feldspars, and softer minerals without cleavage; it also includes the Mohs hardness scale from talc (1) to diamond (10), with a fingernail (2.5), copper penny (3.5), glass plate (5.5) and steel nail (6.5) as test tools. Page 2 covers the softer nonmetallic minerals with cleavage, such as the micas, talc, gypsum, halite, calcite, dolomite and fluorite, and the metallic minerals magnetite, graphite, galena, pyrite, chalcopyrite, hematite and ilmenite.
Regents Exam Questions
Released Regents questions that cannot be answered without this table, listed by exam. Each link opens the question with its answer key; the standard is the one the question assesses. The exams through August 2026 were given with the earlier edition of the ESSRT, which has the same table.
| Exam | Cluster | Question | Standard |
|---|---|---|---|
| January 2026 Earth and Space Sciences Regents | Mined and Mineral Resources of New York State | Question 14 | HS-ESS2-3 |