Monotropy is a type of polymorphism in which there is one stable form and all others are unstable and there is no transitional temperature between them.
Mutagenic substances are substances that cause mutation, a change in inheritable properties of an organism.
Haematite is a mineral of iron(III) oxide Fe2O3. It is the most important ore of iron and usually occurs in two main forms: as a massive red kidney-shaped ore and as grey to black metallic crystals known as specular iron ore. Haematite is the major red colouring agent in rocks; the largest deposits are of sedimentary origin. In industry haematite is also used as a polishing agent (jeweller’s rouge) and in paints.
Natural caoutchouc is an addition polymer of isoprene. It is obtained from tropical plant of rubber-tree by coagulation of rubber-tree-milk.
Natural gas is a naturally occurring mixture of gaseous hydrocarbons. The approximate composition of natural gas is 85 % methane, 10 % ethane, 3 % propane, with lesser amounts of butane, and other higher alkanes. Natural gas is used as a fuel and for the manufacture of chemicals.
Natural resins are organic compounds which are secreted by some plants and insects. They are used as adhesives, and are very often unsoluble in water.
Generalic, Eni. "S.t.p.." Croatian-English Chemistry Dictionary & Glossary. 29 June 2022. KTF-Split. {Date of access}. <https://glossary.periodni.com>.
Glossary
Periodic Table
