118 elements · IUPAC/NIST · electron config · ionization · CAS compounds · balanced reactions.
Embed 118 elements, 100+ alloys, 1,800 gemstones, 100K stars, and 6,215 minerals in any website.
IUPAC + NIST + IMA + IAU + GIA references. Zero dependencies. Shadow DOM. 4 themes. Free CDN.
Five sites covering chemistry, materials, mineralogy, gemology, and astronomy.
118 elements · IUPAC/NIST · electron config · ionization · CAS compounds · balanced reactions.
100+ alloys · steels/Al/brass/bronze/Ti/Ni · tensile/yield strength · Brinell/Rockwell/Vickers hardness · applications.
1,800+ gemstones · GIA + IGS · Mohs/refractive/sg · 4Cs (diamond) · treatments · origins.
100K+ stars · Hipparcos/Gaia DR3 · spectral class OBAFGKM · NASA Exoplanet Archive · 88 IAU constellations · Messier/NGC.
mineralfyi.com · npm
6,215 minerals · IMA list · 7 crystal systems · Mohs hardness · Dana + Nickel-Strunz · localities.
Science FYI is 1 of 11 FYI Families
Cross-references: Nature FYI (biology), Utility FYI (unit conversion), Creative FYI (color science).
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<div data-starfyi="entity" data-slug="sirius"></div>ChemFYI sources IUPAC + NIST. 118 elements with atomic number, mass, electron config, ionization, melting/boiling points, electronegativity, isotopes. Compounds via CAS Registry. Balanced reactions.
AlloyFYI documents 100+ alloys: steels (carbon/stainless/tool/HSLA), aluminum (1xxx-7xxx), brass, bronze, titanium, superalloys (Inconel, Hastelloy). Tensile/yield strength, hardness (Brinell/Rockwell/Vickers).
GemFYI uses GIA + IGS standards. 1,800+ gemstones with Mohs hardness, refractive index, specific gravity, crystal system, dispersion. Diamond 4Cs, pearl grading, opal types. Gemology glossary.
StarFYI uses Hipparcos/Tycho/Gaia DR3. 100K+ stars with apparent/absolute magnitude, spectral class (OBAFGKM), parallax distance. Exoplanets via NASA Exoplanet Archive. 88 IAU constellations.
Per the IMA (International Mineralogical Association) current list. MineralFYI has chemical formula, crystal system, Mohs hardness, density, cleavage, luster, color, locality per mineral. Dana classification + Nickel-Strunz cross-references.