What unakite is, why it is a rock rather than a single mineral, where its pink and green colors come from, the meanings crystal traditions give it, how durable it is, how to clean and store it, and how to tell natural unakite from look-alikes and dyed stones.
What celestite is, where its sky-blue color comes from, the meanings crystal lovers give it, why it is soft and fades in sunlight, how to clean and store it without water damage, and how to tell real celestite geodes from dyed or glass imitations.
What larimar is (a rare blue pectolite found only in the Dominican Republic), how it was discovered and named, what it is said to mean in crystal tradition, why it fades in sunlight and heat, how to care for a soft stone and how to tell real larimar from glass, resin and dyed stones.
What chrysoprase is (apple-green chalcedony colored by nickel), where it is mined, its history, what it is said to mean in crystal tradition, why it can fade in heat and light, and how to tell it from dyed chalcedony, glass and "lemon chrysoprase."
What rhodonite is (a pink manganese silicate with black veins), where it is mined, its history in Russian decorative art, what it is said to mean in crystal tradition, how to care for it and how to tell it apart from rhodochrosite, dyed stones and glass.
What lepidolite is (a lithium-bearing mica), where it forms, why it sparkles and flakes, what it is said to mean in crystal tradition, why holding it is not the same as lithium medicine, how to care for a soft stone and how to spot dyed or mislabeled pieces.
What onyx really is (banded chalcedony), why almost all black onyx is dyed, how sardonyx and "onyx marble" differ, what onyx is said to mean in crystal tradition, how to clean it and how to tell real onyx from glass, plastic and look-alikes.
What sunstone is, why it sparkles, how Oregon sunstone differs from other feldspar sunstones, what it is said to mean in crystal tradition, how to care for it and how to tell it from goldstone glass and treated stones.
What bloodstone (heliotrope) is, how its red spots form, the legends and March birthstone history behind it, what it is said to mean in crystal tradition, how to care for it and how to tell it from dyed stones and look-alikes.
What kyanite is, why its hardness changes with direction, what blue, black, green and orange kyanite are said to mean in crystal tradition, how to care for its fragile blades and how to tell it from sapphire, glass and other look-alikes.