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Rh him to perpetual imprisonment and forfeiture of his property; for the law of England took no account of religious scruples or professional etiquette when they permit the execution of a preventable crime. Strangely enough, however, the government passed over the incriminating conversation with Greenway, and relied entirely on the strong circumstantial evidence to support the charge of high treason against the prisoner. The trial was not conducted in a manner which would be permitted in more modern days. The rules of evidence which now govern the procedure in criminal cases did not then exist, and Garnet’s trial, like many others, was influenced by the political situation, the case against him being supported by general political accusations against the Jesuits as a body, and with evidence of their complicity in former plots against the government. The prisoner himself deeply prejudiced his cause by his numerous false statements, and still more by his adherence to the doctrine of equivocation. Garnet, it is true, claimed to limit the justification of equivocation to cases “of necessary defence from injustice and wrong or of the obtaining some good of great importance when there is no danger of harm to others,” and he could justify his conduct in lying to the council by their own conduct towards him, which included treacherous eavesdropping and fraud, and also threats of torture. Moreover, the attempt of the counsel for the crown to force the prisoner to incriminate himself was opposed to the whole spirit and tradition of the law of England. He was declared guilty, and it is probable, in spite of the irregularity and unjudicial character of his trial, that substantial justice was done by his conviction. His execution took place on the 3rd of May 1606, Garnet acknowledging himself justly condemned for his concealment of the plot, but maintaining to the last that he had never approved it. The king, who had shown him favour throughout and who had forbidden his being tortured, directed that he should be hanged till he was quite dead and that the usual frightful cruelties should be omitted.

Soon after his death the story of the miracle of “Garnet’s Straw” was circulated all over Europe, according to which a blood-stained straw from the scene of execution which came into the hands of one John Wilkinson, a young and fervent Roman Catholic, who was present, developed Garnet’s likeness. In consequence of the credence which the story obtained, Archbishop Bancroft was commissioned by the privy council to discover and punish the impostors. Garnet’s name was included in the list of the 353 Roman Catholic martyrs sent to Rome from England in 1880, and in the 2nd appendix of the Menology of England and Wales compiled by order of the cardinal archbishop and the bishops of the province of Westminster by R. Stanton in 1887, where he is styled “a martyr whose cause is deferred for future investigation.” The passage in Macbeth (Act II. Scene iii.) on equivocators no doubt refers especially to Garnet. His aliases were Farmer, Marchant, Whalley, Darcey Meaze, Phillips, Humphreys, Roberts, Fulgeham, Allen. Garnet was the author of a letter on the Martyrdom of Godfrey Maurice, alias John Jones, in Diego Yepres’s Historia particular de la persecucion de Inglaterra (1599); a Treatise of Schism, a MS. treatise in reply to A Protestant Dialogue between a Gentleman and a Physician; a translation of the Stemma Christi with supplements (1622); a treatise on the Rosary; a Treatise of Christian Renovation or Birth (1616).

—Of the great number of works embodying the controversy on the question of Garnet’s guilt the following may be mentioned, in order of date: A True and Perfect Relation of the ''whole Proceedings against ... Garnet a Jesuit and his Confederates'' (1606, repr. 1679), the official account, but incomplete and inaccurate; Apologia pro Henrico Garneto (1610), by the Jesuit L’Heureux, under the pseudonym Eudaemon -Joannes, and Dr Robert Abbot’s reply, Antilogia versus Apologiam Eudaemon-Joannes, in which the whole subject is well treated; Henry More, ''Hist. Provinciae Anglicanae'' Societatis (1660); D. Jardine, Gunpowder Plot (1857); J. Morris, S.J., Condition of the Catholics under James I. (1872), containing Father Gerard’s narrative; J. H. Pollen, Father Henry Garnet and the Gunpowder Plot (1888); S. R. Gardiner, What Gunpowder Plot was (1897), in reply to John Gerard, S.J., What was the Gunpowder Plot? (1897); J. Gerard, Contributions towards a Life of Father Henry Garnet (1898). See also State Trials II., and Cal. of State Papers Dom., (1603–1610). The original documents are preserved in the Gunpowder Plot Book at the Record Office.

GARNET, a name applied to a group of closely-related minerals, many of which are used as gem-stones. The name probably comes from the Lat. granaticus, a stone so named from its resemblance to the pulp of the pomegranate in colour, or to its seeds in shape; or possibly from granum, “cochineal,” in allusion to the colour of the stone. The garnet was included, with other red stones, by Theophrastus, under the name of, while the common garnet seems to have been his . Pliny groups several stones, including garnet, under the term carbunculus. The modern carbuncle is a deep red garnet (almandine) cut en cabochon, or with a smooth convex surface, frequently hollowed out at the back, in consequence of the depth of colour, and sometimes enlivened with a foil (see ). The Hebrew word nophek, translated  in the Septuagint, seems to have been the garnet or carbuncle, whilst bareketh ( of the Septuagint), though also rendered “carbuncle,” was probably either beryl or, in the opinion of Professor Flinders Petrie, rock-crystal. Garnets were used as beads in ancient Egypt. Though not extensively employed by the Greeks as a material for engraved gems, it was much used for this purpose by the Romans of the Empire. Flat polished slabs of garnet are found inlaid in mosaic work in Anglo-Saxon and Merovingian jewelry, the material used being almandine, or “precious garnet.”

Garnets vary considerably in chemical composition, but the variation is limited within a certain range. All are orthosilicates, conformable to the general formula R″3R‴2(SiO4)3, where R″ = Ca, Mg, Fe, Mn, and R‴ = Al, Fe, Cr. Although there are many kinds of garnet they may be reduced to the following six types, which may occur intermixed isomorphously:—

1. Calcium-aluminium garnet (Grossularite), Ca3Al2Si3O12. 2. Calcium-ferric garnet (Andradite), Ca3Fe2Si3O12. 3. Calcium-chromium garnet (Uvarovite), Ca3Cr2Si3O12. 4. Magnesium-aluminium garnet (Pyrope), Mg3Al2Si3O12. 5. Ferrous-aluminium garnet (Almandine), Fe3Al2Si3O12. 6. Manganous-aluminium garnet (Spessartine), Mn3Al2Si3O12.

These are frequently called respectively:—(1) Lime-alumina garnet; (2) lime-iron garnet; (3) lime-chrome garnet; (4) magnesia-alumina garnet; (5) iron-alumina garnet; (6) manganese-alumina garnet.

The types are usually modified by isomorphous replacement of some of their elements.

All garnets crystallize in the cubic system, usually in rhombic dodecahedra or in icositetrahedra, or in a combination of the two forms (see fig.). Octahedra and cubes are rare, but the six-faced octahedron occurs in some of the combinations. Cleavage obtains parallel to the dodecahedron, but is imperfect. The hardness varies according to composition from 6.5 to 7.5, and the specific gravity in like manner has a wide range, varying from 3.4 in the calcium-aluminium garnets to 4.3 in the ferrous-aluminium species. Sir Arthur H. Church found that many garnets when fused yielded a product of lower density than the original mineral. The colour is typically red, but may be brown, yellow, green or even black, while some garnets are colourless. Being cubic the garnets are normally singly refracting, but anomalies frequently occur, leading some authorities to doubt whether the mineral is really cubic. The refractive power of garnet is high, so that in microscopic sections, viewed by transmitted light, the mineral stands out in relief.

Garnets are very widely distributed, occurring in crystalline schists, gneiss, granite, metamorphic limestone, serpentine, and occasionally in volcanic rocks. With omphacite and smaragdite, garnet forms the peculiar rock called eclogite. The garnets used for industrial purposes are usually found loose in detrital deposits, weathered from the parent rock, though in some important workings the rock is quarried. The garnets employed as gem-stones are described under their respective headings (see, , and ). Most of the minerals noticed in this article are of scientific rather than commercial interest.

Grossularite or “gooseberry-stone,” is typically a brownish-green garnet from Siberia, known also as wiluite (a name applied also to, q.v.), from the river Wilui where it occurs. It is related to hessonite, or cinnamon-stone. A Mexican variety occurs in rose-pink 