heliolite

noun

"heliolite" is a 9-letter English headword indexed on PlainSpell.

The verdict

“heliolite” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.

Unranked
below top-frequency English
9
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A variety of feldspar, closely related to orthoclase

Corpus desk

Index EN-heliolite · heliolite · English

heliolite · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-LONG 9 letters
  • VOW-5 5 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "H" thin
  • PHOTO-UNK Peer pending

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Key facts for heliolite
PropertyValue
Headwordheliolite
LanguageEnglish
Part of speechNoun
Letters9
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “heliolite” in English

heliolitesits beyond the 100,000 most-frequent English words, in the long tail of technical, archaic, or otherwise rare vocabulary where spelling doubt tends to strike hardest.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

heliolite is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "A variety of feldspar, closely related to orthoclase".

No generated misspelling entries exist for heliolite in our index, a straightforward case of a spelling with little room for common typos. This headword has no recorded confusable partner, since nothing in our dataset looks or sounds close enough to cause mix-ups.

Etymologically, the entry records: From helio- + -lite, from Ancient Greek ἥλιος (hḗlios, “sun”) and λίθος (líthos, “stone”); analogous to sunstone. The correct English form is heliolite, spelled H-E-L-I-O-L-I-T-E.

Definition

  1. 1
    A variety of feldspar, closely related to orthoclase

Etymology

From helio- + -lite, from Ancient Greek ἥλιος (hḗlios, “sun”) and λίθος (líthos, “stone”); analogous to sunstone.

Synonyms

sunstoneaventurine feldspar

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "heliolite"?
"heliolite" is spelled H-E-L-I-O-L-I-T-E.
What does "heliolite" mean?
As a noun, "heliolite" means: A variety of feldspar, closely related to orthoclase
What is the origin of the word "heliolite"?
From helio- + -lite, from Ancient Greek ἥλιος (hḗlios, “sun”) and λίθος (líthos, “stone”); analogous to sunstone. See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list