Ziegler gives us Valrhona, a French chocolate made with a high proportion of criollo beans; Ziegler describes it as not sugar sweet, but flower sweet, and once Ziegler puts it into words, I can taste the flower sweet, just as I could taste the raisiny aftertaste..
Diamond is the hardest naturally occurring mineral, topping Mohs' Scale of Hardness with a relative hardness value of 10.Diamond is a polymorph of the element carbon, and graphite is another. While the two share the same chemistry, C (elemental carbon), they have very different structures and properties.iamond is the hardest naturally occurring mineral, topping Mohs' Scale of Hardness with a relative hardness value of 10.
Are all gems minerals? A mineral is an inorganic, naturally occurring substance with distinct chemistry and crystalline structure. Gemstones are materials that have an economic or aesthetic value. Therefore, not all gemstones are minerals. For example, amber is solidified tree resin, so it is not a mineral. Gemstones can be classified as either amorphous or crystalline. Amorphous gemstones have no orderly internal atomic structure and no naturally occurring shape. Glass, amber, and opal are examples. Crystalline gemstones are minerals; they have a definite and regular internal atomic structure. Examples include garnet, emerald, and ruby. PROCEDURE: Most students are familiar with their birth month's gemstone. Poll your students and see if you can list the months and the gems just from their answers.