Orthodox Christians Saints in these days (July 18-22)

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Saint Pambo of the Nitrian desert, whose face shone like lightning (July 18) (icon)
  
Nitria: one of the earliest orthodox christian monastic sites in ancient Egypt

Saint Macrina the Philosopher, the Sister of St Basil the Great (July 19)

Holy, Glorious Prophet Elijah (July 20)

St Macrina (from here)

Orthodox New Martyrs in France vs Nazi (July 20)

St Simeon of Emessa (Syria) the Fool-For-Christ (July 21)

The Marvelous Death and Translation to Heaven of a Holy Fool (St. Symeon the Fool for Christ)
  
Myrrhbearer and Equal of the Apostles Mary Magdalene (July 22)

Saint Virgin Martyr Markella of Chios, Greece (Juy 22)

The martyrdom of st Markella by her father! Icon from here.